Home / 13,437.76-18,545.28-7,850.56

Finding the Fourth Proportional to 13,437.76, 18,545.28 and 7,850.56

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Solution

The fourth proportional to 13,437.76, 18,545.28 and 7,850.56 is: 10,834.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.76 : 18,545.28 = 7,850.56 : x
  2. Step 2: Convert to fraction form
    13,437.76/18,545.28 = 7,850.56/x
  3. Step 3: Cross multiply
    13,437.76x = 18,545.28 × 7,850.56
  4. Step 4: Simplify right side
    13,437.76x = 145,590,833.36
  5. Step 5: Solve for x
    x = 145,590,833.36/13,437.76
  6. Step 6: Final answer
    x = 10,834.46

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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.