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Finding the Fourth Proportional to 8,993.40, 13,490.10 and 5,537.40

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Solution

The fourth proportional to 8,993.40, 13,490.10 and 5,537.40 is: 8,306.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,993.40 : 13,490.10 = 5,537.40 : x
  2. Step 2: Convert to fraction form
    8,993.40/13,490.10 = 5,537.40/x
  3. Step 3: Cross multiply
    8,993.40x = 13,490.10 × 5,537.40
  4. Step 4: Simplify right side
    8,993.40x = 74,700,079.74
  5. Step 5: Solve for x
    x = 74,700,079.74/8,993.40
  6. Step 6: Final answer
    x = 8,306.10

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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.