Home / 14,187.40-19,589.04-9,154.56

Finding the Fourth Proportional to 14,187.40, 19,589.04 and 9,154.56

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Solution

The fourth proportional to 14,187.40, 19,589.04 and 9,154.56 is: 12,640.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.40 : 19,589.04 = 9,154.56 : x
  2. Step 2: Convert to fraction form
    14,187.40/19,589.04 = 9,154.56/x
  3. Step 3: Cross multiply
    14,187.40x = 19,589.04 × 9,154.56
  4. Step 4: Simplify right side
    14,187.40x = 179,329,042.02
  5. Step 5: Solve for x
    x = 179,329,042.02/14,187.40
  6. Step 6: Final answer
    x = 12,640.02

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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.