Home / 13,437.45-20,156.36-5,117.92

Finding the Fourth Proportional to 13,437.45, 20,156.36 and 5,117.92

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Solution

The fourth proportional to 13,437.45, 20,156.36 and 5,117.92 is: 7,676.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.45 : 20,156.36 = 5,117.92 : x
  2. Step 2: Convert to fraction form
    13,437.45/20,156.36 = 5,117.92/x
  3. Step 3: Cross multiply
    13,437.45x = 20,156.36 × 5,117.92
  4. Step 4: Simplify right side
    13,437.45x = 103,158,637.97
  5. Step 5: Solve for x
    x = 103,158,637.97/13,437.45
  6. Step 6: Final answer
    x = 7,676.95

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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.