Home / 10,107.40-15,161.10-9,718.60

Finding the Fourth Proportional to 10,107.40, 15,161.10 and 9,718.60

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Solution

The fourth proportional to 10,107.40, 15,161.10 and 9,718.60 is: 14,577.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,107.40 : 15,161.10 = 9,718.60 : x
  2. Step 2: Convert to fraction form
    10,107.40/15,161.10 = 9,718.60/x
  3. Step 3: Cross multiply
    10,107.40x = 15,161.10 × 9,718.60
  4. Step 4: Simplify right side
    10,107.40x = 147,344,666.46
  5. Step 5: Solve for x
    x = 147,344,666.46/10,107.40
  6. Step 6: Final answer
    x = 14,577.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.