Home / 18,748.04-28,126.02-9,981.68

Finding the Fourth Proportional to 18,748.04, 28,126.02 and 9,981.68

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Solution

The fourth proportional to 18,748.04, 28,126.02 and 9,981.68 is: 14,974.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,748.04 : 28,126.02 = 9,981.68 : x
  2. Step 2: Convert to fraction form
    18,748.04/28,126.02 = 9,981.68/x
  3. Step 3: Cross multiply
    18,748.04x = 28,126.02 × 9,981.68
  4. Step 4: Simplify right side
    18,748.04x = 280,744,931.31
  5. Step 5: Solve for x
    x = 280,744,931.31/18,748.04
  6. Step 6: Final answer
    x = 14,974.63

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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.