Home / 13,875.04-19,149.24-9,169.12

Finding the Fourth Proportional to 13,875.04, 19,149.24 and 9,169.12

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Solution

The fourth proportional to 13,875.04, 19,149.24 and 9,169.12 is: 12,654.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.04 : 19,149.24 = 9,169.12 : x
  2. Step 2: Convert to fraction form
    13,875.04/19,149.24 = 9,169.12/x
  3. Step 3: Cross multiply
    13,875.04x = 19,149.24 × 9,169.12
  4. Step 4: Simplify right side
    13,875.04x = 175,581,679.47
  5. Step 5: Solve for x
    x = 175,581,679.47/13,875.04
  6. Step 6: Final answer
    x = 12,654.50

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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.