Home / 17,619.18-26,432.65-5,140.18

Finding the Fourth Proportional to 17,619.18, 26,432.65 and 5,140.18

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Solution

The fourth proportional to 17,619.18, 26,432.65 and 5,140.18 is: 7,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,619.18 : 26,432.65 = 5,140.18 : x
  2. Step 2: Convert to fraction form
    17,619.18/26,432.65 = 5,140.18/x
  3. Step 3: Cross multiply
    17,619.18x = 26,432.65 × 5,140.18
  4. Step 4: Simplify right side
    17,619.18x = 135,868,578.88
  5. Step 5: Solve for x
    x = 135,868,578.88/17,619.18
  6. Step 6: Final answer
    x = 7,711.40

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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.