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Finding the Fourth Proportional to 14,713.60, 22,113.60 and 12,812.80

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Solution

The fourth proportional to 14,713.60, 22,113.60 and 12,812.80 is: 19,256.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,713.60 : 22,113.60 = 12,812.80 : x
  2. Step 2: Convert to fraction form
    14,713.60/22,113.60 = 12,812.80/x
  3. Step 3: Cross multiply
    14,713.60x = 22,113.60 × 12,812.80
  4. Step 4: Simplify right side
    14,713.60x = 283,337,134.08
  5. Step 5: Solve for x
    x = 283,337,134.08/14,713.60
  6. Step 6: Final answer
    x = 19,256.82

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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.