Home / 13,158.40-19,737.68-4,838.56

Finding the Fourth Proportional to 13,158.40, 19,737.68 and 4,838.56

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Solution

The fourth proportional to 13,158.40, 19,737.68 and 4,838.56 is: 7,257.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,158.40 : 19,737.68 = 4,838.56 : x
  2. Step 2: Convert to fraction form
    13,158.40/19,737.68 = 4,838.56/x
  3. Step 3: Cross multiply
    13,158.40x = 19,737.68 × 4,838.56
  4. Step 4: Simplify right side
    13,158.40x = 95,501,948.94
  5. Step 5: Solve for x
    x = 95,501,948.94/13,158.40
  6. Step 6: Final answer
    x = 7,257.87

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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.