Home / 11,088.66-15,295.32-8,430.24

Finding the Fourth Proportional to 11,088.66, 15,295.32 and 8,430.24

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Solution

The fourth proportional to 11,088.66, 15,295.32 and 8,430.24 is: 11,628.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,088.66 : 15,295.32 = 8,430.24 : x
  2. Step 2: Convert to fraction form
    11,088.66/15,295.32 = 8,430.24/x
  3. Step 3: Cross multiply
    11,088.66x = 15,295.32 × 8,430.24
  4. Step 4: Simplify right side
    11,088.66x = 128,943,218.48
  5. Step 5: Solve for x
    x = 128,943,218.48/11,088.66
  6. Step 6: Final answer
    x = 11,628.39

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.