Home / 9,141.26-12,615.17-5,162.40

Finding the Fourth Proportional to 9,141.26, 12,615.17 and 5,162.40

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Solution

The fourth proportional to 9,141.26, 12,615.17 and 5,162.40 is: 7,124.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,141.26 : 12,615.17 = 5,162.40 : x
  2. Step 2: Convert to fraction form
    9,141.26/12,615.17 = 5,162.40/x
  3. Step 3: Cross multiply
    9,141.26x = 12,615.17 × 5,162.40
  4. Step 4: Simplify right side
    9,141.26x = 65,124,527.80
  5. Step 5: Solve for x
    x = 65,124,527.80/9,141.26
  6. Step 6: Final answer
    x = 7,124.24

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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.