Home / 18,368.16-25,348.12-9,984.66

Finding the Fourth Proportional to 18,368.16, 25,348.12 and 9,984.66

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Solution

The fourth proportional to 18,368.16, 25,348.12 and 9,984.66 is: 13,778.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,368.16 : 25,348.12 = 9,984.66 : x
  2. Step 2: Convert to fraction form
    18,368.16/25,348.12 = 9,984.66/x
  3. Step 3: Cross multiply
    18,368.16x = 25,348.12 × 9,984.66
  4. Step 4: Simplify right side
    18,368.16x = 253,092,359.84
  5. Step 5: Solve for x
    x = 253,092,359.84/18,368.16
  6. Step 6: Final answer
    x = 13,778.86

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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.