Home / 14,787.60-22,117.40-13,238.80

Finding the Fourth Proportional to 14,787.60, 22,117.40 and 13,238.80

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Solution

The fourth proportional to 14,787.60, 22,117.40 and 13,238.80 is: 19,800.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,787.60 : 22,117.40 = 13,238.80 : x
  2. Step 2: Convert to fraction form
    14,787.60/22,117.40 = 13,238.80/x
  3. Step 3: Cross multiply
    14,787.60x = 22,117.40 × 13,238.80
  4. Step 4: Simplify right side
    14,787.60x = 292,807,835.12
  5. Step 5: Solve for x
    x = 292,807,835.12/14,787.60
  6. Step 6: Final answer
    x = 19,800.90

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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.