Home / 10,312.25-15,434.15-9,389.93

Finding the Fourth Proportional to 10,312.25, 15,434.15 and 9,389.93

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Solution

The fourth proportional to 10,312.25, 15,434.15 and 9,389.93 is: 14,053.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,312.25 : 15,434.15 = 9,389.93 : x
  2. Step 2: Convert to fraction form
    10,312.25/15,434.15 = 9,389.93/x
  3. Step 3: Cross multiply
    10,312.25x = 15,434.15 × 9,389.93
  4. Step 4: Simplify right side
    10,312.25x = 144,925,463.99
  5. Step 5: Solve for x
    x = 144,925,463.99/10,312.25
  6. Step 6: Final answer
    x = 14,053.73

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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.