Home / 15,159.36-20,919.24-8,444.76

Finding the Fourth Proportional to 15,159.36, 20,919.24 and 8,444.76

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Solution

The fourth proportional to 15,159.36, 20,919.24 and 8,444.76 is: 11,653.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,159.36 : 20,919.24 = 8,444.76 : x
  2. Step 2: Convert to fraction form
    15,159.36/20,919.24 = 8,444.76/x
  3. Step 3: Cross multiply
    15,159.36x = 20,919.24 × 8,444.76
  4. Step 4: Simplify right side
    15,159.36x = 176,657,961.18
  5. Step 5: Solve for x
    x = 176,657,961.18/15,159.36
  6. Step 6: Final answer
    x = 11,653.39

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Half scale
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Double scale
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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.