Home / 14,655.90-21,981.54-4,126.71

Finding the Fourth Proportional to 14,655.90, 21,981.54 and 4,126.71

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Solution

The fourth proportional to 14,655.90, 21,981.54 and 4,126.71 is: 6,189.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,655.90 : 21,981.54 = 4,126.71 : x
  2. Step 2: Convert to fraction form
    14,655.90/21,981.54 = 4,126.71/x
  3. Step 3: Cross multiply
    14,655.90x = 21,981.54 × 4,126.71
  4. Step 4: Simplify right side
    14,655.90x = 90,711,440.93
  5. Step 5: Solve for x
    x = 90,711,440.93/14,655.90
  6. Step 6: Final answer
    x = 6,189.41

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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.