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Finding the Fourth Proportional to 13,030.38, 17,981.95 and 7,062.03

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Solution

The fourth proportional to 13,030.38, 17,981.95 and 7,062.03 is: 9,745.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,030.38 : 17,981.95 = 7,062.03 : x
  2. Step 2: Convert to fraction form
    13,030.38/17,981.95 = 7,062.03/x
  3. Step 3: Cross multiply
    13,030.38x = 17,981.95 × 7,062.03
  4. Step 4: Simplify right side
    13,030.38x = 126,989,132.97
  5. Step 5: Solve for x
    x = 126,989,132.97/13,030.38
  6. Step 6: Final answer
    x = 9,745.62

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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.