Home / 10,378.49-15,572.28-5,446.98

Finding the Fourth Proportional to 10,378.49, 15,572.28 and 5,446.98

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Solution

The fourth proportional to 10,378.49, 15,572.28 and 5,446.98 is: 8,172.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.49 : 15,572.28 = 5,446.98 : x
  2. Step 2: Convert to fraction form
    10,378.49/15,572.28 = 5,446.98/x
  3. Step 3: Cross multiply
    10,378.49x = 15,572.28 × 5,446.98
  4. Step 4: Simplify right side
    10,378.49x = 84,821,897.71
  5. Step 5: Solve for x
    x = 84,821,897.71/10,378.49
  6. Step 6: Final answer
    x = 8,172.86

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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.