Home / 14,979.80-22,469.70-9,439.40

Finding the Fourth Proportional to 14,979.80, 22,469.70 and 9,439.40

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Solution

The fourth proportional to 14,979.80, 22,469.70 and 9,439.40 is: 14,159.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,979.80 : 22,469.70 = 9,439.40 : x
  2. Step 2: Convert to fraction form
    14,979.80/22,469.70 = 9,439.40/x
  3. Step 3: Cross multiply
    14,979.80x = 22,469.70 × 9,439.40
  4. Step 4: Simplify right side
    14,979.80x = 212,100,486.18
  5. Step 5: Solve for x
    x = 212,100,486.18/14,979.80
  6. Step 6: Final answer
    x = 14,159.10

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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.