Home / 13,633.32-20,437.02-8,689.08

Finding the Fourth Proportional to 13,633.32, 20,437.02 and 8,689.08

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Solution

The fourth proportional to 13,633.32, 20,437.02 and 8,689.08 is: 13,025.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,633.32 : 20,437.02 = 8,689.08 : x
  2. Step 2: Convert to fraction form
    13,633.32/20,437.02 = 8,689.08/x
  3. Step 3: Cross multiply
    13,633.32x = 20,437.02 × 8,689.08
  4. Step 4: Simplify right side
    13,633.32x = 177,578,901.74
  5. Step 5: Solve for x
    x = 177,578,901.74/13,633.32
  6. Step 6: Final answer
    x = 13,025.36

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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.