Home / 15,388.48-21,235.44-9,430.24

Finding the Fourth Proportional to 15,388.48, 21,235.44 and 9,430.24

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Solution

The fourth proportional to 15,388.48, 21,235.44 and 9,430.24 is: 13,013.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,388.48 : 21,235.44 = 9,430.24 : x
  2. Step 2: Convert to fraction form
    15,388.48/21,235.44 = 9,430.24/x
  3. Step 3: Cross multiply
    15,388.48x = 21,235.44 × 9,430.24
  4. Step 4: Simplify right side
    15,388.48x = 200,255,295.71
  5. Step 5: Solve for x
    x = 200,255,295.71/15,388.48
  6. Step 6: Final answer
    x = 13,013.33

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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.