Home / 10,227.20-14,121.47-7,985.18

Finding the Fourth Proportional to 10,227.20, 14,121.47 and 7,985.18

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Solution

The fourth proportional to 10,227.20, 14,121.47 and 7,985.18 is: 11,025.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,227.20 : 14,121.47 = 7,985.18 : x
  2. Step 2: Convert to fraction form
    10,227.20/14,121.47 = 7,985.18/x
  3. Step 3: Cross multiply
    10,227.20x = 14,121.47 × 7,985.18
  4. Step 4: Simplify right side
    10,227.20x = 112,762,535.08
  5. Step 5: Solve for x
    x = 112,762,535.08/10,227.20
  6. Step 6: Final answer
    x = 11,025.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.