Home / 10,543.80-14,553.90-7,400.76

Finding the Fourth Proportional to 10,543.80, 14,553.90 and 7,400.76

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Solution

The fourth proportional to 10,543.80, 14,553.90 and 7,400.76 is: 10,215.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,543.80 : 14,553.90 = 7,400.76 : x
  2. Step 2: Convert to fraction form
    10,543.80/14,553.90 = 7,400.76/x
  3. Step 3: Cross multiply
    10,543.80x = 14,553.90 × 7,400.76
  4. Step 4: Simplify right side
    10,543.80x = 107,709,920.96
  5. Step 5: Solve for x
    x = 107,709,920.96/10,543.80
  6. Step 6: Final answer
    x = 10,215.47

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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.