Home / 13,553.04-20,312.64-6,531.76

Finding the Fourth Proportional to 13,553.04, 20,312.64 and 6,531.76

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Solution

The fourth proportional to 13,553.04, 20,312.64 and 6,531.76 is: 9,789.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.04 : 20,312.64 = 6,531.76 : x
  2. Step 2: Convert to fraction form
    13,553.04/20,312.64 = 6,531.76/x
  3. Step 3: Cross multiply
    13,553.04x = 20,312.64 × 6,531.76
  4. Step 4: Simplify right side
    13,553.04x = 132,677,289.45
  5. Step 5: Solve for x
    x = 132,677,289.45/13,553.04
  6. Step 6: Final answer
    x = 9,789.49

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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.