Home / 10,431.16-15,553.68-9,272.05

Finding the Fourth Proportional to 10,431.16, 15,553.68 and 9,272.05

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Solution

The fourth proportional to 10,431.16, 15,553.68 and 9,272.05 is: 13,825.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.16 : 15,553.68 = 9,272.05 : x
  2. Step 2: Convert to fraction form
    10,431.16/15,553.68 = 9,272.05/x
  3. Step 3: Cross multiply
    10,431.16x = 15,553.68 × 9,272.05
  4. Step 4: Simplify right side
    10,431.16x = 144,214,420.88
  5. Step 5: Solve for x
    x = 144,214,420.88/10,431.16
  6. Step 6: Final answer
    x = 13,825.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.