Home / 12,253.60-16,905.36-7,217.44

Finding the Fourth Proportional to 12,253.60, 16,905.36 and 7,217.44

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Solution

The fourth proportional to 12,253.60, 16,905.36 and 7,217.44 is: 9,957.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253.60 : 16,905.36 = 7,217.44 : x
  2. Step 2: Convert to fraction form
    12,253.60/16,905.36 = 7,217.44/x
  3. Step 3: Cross multiply
    12,253.60x = 16,905.36 × 7,217.44
  4. Step 4: Simplify right side
    12,253.60x = 122,013,421.48
  5. Step 5: Solve for x
    x = 122,013,421.48/12,253.60
  6. Step 6: Final answer
    x = 9,957.35

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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.