Home / 14,608.08-20,159.28-13,491.90

Finding the Fourth Proportional to 14,608.08, 20,159.28 and 13,491.90

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Solution

The fourth proportional to 14,608.08, 20,159.28 and 13,491.90 is: 18,618.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,608.08 : 20,159.28 = 13,491.90 : x
  2. Step 2: Convert to fraction form
    14,608.08/20,159.28 = 13,491.90/x
  3. Step 3: Cross multiply
    14,608.08x = 20,159.28 × 13,491.90
  4. Step 4: Simplify right side
    14,608.08x = 271,986,989.83
  5. Step 5: Solve for x
    x = 271,986,989.83/14,608.08
  6. Step 6: Final answer
    x = 18,618.94

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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.