Home / 14,747.60-22,121.40-8,915.60

Finding the Fourth Proportional to 14,747.60, 22,121.40 and 8,915.60

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Solution

The fourth proportional to 14,747.60, 22,121.40 and 8,915.60 is: 13,373.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,747.60 : 22,121.40 = 8,915.60 : x
  2. Step 2: Convert to fraction form
    14,747.60/22,121.40 = 8,915.60/x
  3. Step 3: Cross multiply
    14,747.60x = 22,121.40 × 8,915.60
  4. Step 4: Simplify right side
    14,747.60x = 197,225,553.84
  5. Step 5: Solve for x
    x = 197,225,553.84/14,747.60
  6. Step 6: Final answer
    x = 13,373.40

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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.