Home / 14,877.30-20,512.53-13,106.10

Finding the Fourth Proportional to 14,877.30, 20,512.53 and 13,106.10

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Solution

The fourth proportional to 14,877.30, 20,512.53 and 13,106.10 is: 18,070.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,877.30 : 20,512.53 = 13,106.10 : x
  2. Step 2: Convert to fraction form
    14,877.30/20,512.53 = 13,106.10/x
  3. Step 3: Cross multiply
    14,877.30x = 20,512.53 × 13,106.10
  4. Step 4: Simplify right side
    14,877.30x = 268,839,269.43
  5. Step 5: Solve for x
    x = 268,839,269.43/14,877.30
  6. Step 6: Final answer
    x = 18,070.43

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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.