Home / 13,406.22-18,500.56-7,437.92

Finding the Fourth Proportional to 13,406.22, 18,500.56 and 7,437.92

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Solution

The fourth proportional to 13,406.22, 18,500.56 and 7,437.92 is: 10,264.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,406.22 : 18,500.56 = 7,437.92 : x
  2. Step 2: Convert to fraction form
    13,406.22/18,500.56 = 7,437.92/x
  3. Step 3: Cross multiply
    13,406.22x = 18,500.56 × 7,437.92
  4. Step 4: Simplify right side
    13,406.22x = 137,605,685.24
  5. Step 5: Solve for x
    x = 137,605,685.24/13,406.22
  6. Step 6: Final answer
    x = 10,264.32

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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.