Home / 18,130.85-27,207.05-9,810.70

Finding the Fourth Proportional to 18,130.85, 27,207.05 and 9,810.70

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Solution

The fourth proportional to 18,130.85, 27,207.05 and 9,810.70 is: 14,721.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,130.85 : 27,207.05 = 9,810.70 : x
  2. Step 2: Convert to fraction form
    18,130.85/27,207.05 = 9,810.70/x
  3. Step 3: Cross multiply
    18,130.85x = 27,207.05 × 9,810.70
  4. Step 4: Simplify right side
    18,130.85x = 266,920,205.44
  5. Step 5: Solve for x
    x = 266,920,205.44/18,130.85
  6. Step 6: Final answer
    x = 14,721.88

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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.