Home / 13,670.04-18,862.38-7,618.97

Finding the Fourth Proportional to 13,670.04, 18,862.38 and 7,618.97

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Solution

The fourth proportional to 13,670.04, 18,862.38 and 7,618.97 is: 10,512.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.04 : 18,862.38 = 7,618.97 : x
  2. Step 2: Convert to fraction form
    13,670.04/18,862.38 = 7,618.97/x
  3. Step 3: Cross multiply
    13,670.04x = 18,862.38 × 7,618.97
  4. Step 4: Simplify right side
    13,670.04x = 143,711,813.04
  5. Step 5: Solve for x
    x = 143,711,813.04/13,670.04
  6. Step 6: Final answer
    x = 10,512.90

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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.