Home / 13,545.28-18,692.40-7,576.92

Finding the Fourth Proportional to 13,545.28, 18,692.40 and 7,576.92

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Solution

The fourth proportional to 13,545.28, 18,692.40 and 7,576.92 is: 10,456.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.28 : 18,692.40 = 7,576.92 : x
  2. Step 2: Convert to fraction form
    13,545.28/18,692.40 = 7,576.92/x
  3. Step 3: Cross multiply
    13,545.28x = 18,692.40 × 7,576.92
  4. Step 4: Simplify right side
    13,545.28x = 141,630,819.41
  5. Step 5: Solve for x
    x = 141,630,819.41/13,545.28
  6. Step 6: Final answer
    x = 10,456.10

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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.