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Finding the Fourth Proportional to 12,393.70, 18,590.57 and 5,276.10

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Solution

The fourth proportional to 12,393.70, 18,590.57 and 5,276.10 is: 7,914.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,393.70 : 18,590.57 = 5,276.10 : x
  2. Step 2: Convert to fraction form
    12,393.70/18,590.57 = 5,276.10/x
  3. Step 3: Cross multiply
    12,393.70x = 18,590.57 × 5,276.10
  4. Step 4: Simplify right side
    12,393.70x = 98,085,706.38
  5. Step 5: Solve for x
    x = 98,085,706.38/12,393.70
  6. Step 6: Final answer
    x = 7,914.16

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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.