Home / 17,437.20-26,155.80-8,689.20

Finding the Fourth Proportional to 17,437.20, 26,155.80 and 8,689.20

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Solution

The fourth proportional to 17,437.20, 26,155.80 and 8,689.20 is: 13,033.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,437.20 : 26,155.80 = 8,689.20 : x
  2. Step 2: Convert to fraction form
    17,437.20/26,155.80 = 8,689.20/x
  3. Step 3: Cross multiply
    17,437.20x = 26,155.80 × 8,689.20
  4. Step 4: Simplify right side
    17,437.20x = 227,272,977.36
  5. Step 5: Solve for x
    x = 227,272,977.36/17,437.20
  6. Step 6: Final answer
    x = 13,033.80

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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.