Home / 10,390.10-15,585.15-9,266.90

Finding the Fourth Proportional to 10,390.10, 15,585.15 and 9,266.90

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Solution

The fourth proportional to 10,390.10, 15,585.15 and 9,266.90 is: 13,900.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.10 : 15,585.15 = 9,266.90 : x
  2. Step 2: Convert to fraction form
    10,390.10/15,585.15 = 9,266.90/x
  3. Step 3: Cross multiply
    10,390.10x = 15,585.15 × 9,266.90
  4. Step 4: Simplify right side
    10,390.10x = 144,426,026.54
  5. Step 5: Solve for x
    x = 144,426,026.54/10,390.10
  6. Step 6: Final answer
    x = 13,900.35

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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.