Home / 10,388.13-15,637.70-9,316.50

Finding the Fourth Proportional to 10,388.13, 15,637.70 and 9,316.50

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Solution

The fourth proportional to 10,388.13, 15,637.70 and 9,316.50 is: 14,024.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,388.13 : 15,637.70 = 9,316.50 : x
  2. Step 2: Convert to fraction form
    10,388.13/15,637.70 = 9,316.50/x
  3. Step 3: Cross multiply
    10,388.13x = 15,637.70 × 9,316.50
  4. Step 4: Simplify right side
    10,388.13x = 145,688,585.47
  5. Step 5: Solve for x
    x = 145,688,585.47/10,388.13
  6. Step 6: Final answer
    x = 14,024.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.