Home / 9,209.07-12,708.18-5,432.40

Finding the Fourth Proportional to 9,209.07, 12,708.18 and 5,432.40

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Solution

The fourth proportional to 9,209.07, 12,708.18 and 5,432.40 is: 7,496.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,209.07 : 12,708.18 = 5,432.40 : x
  2. Step 2: Convert to fraction form
    9,209.07/12,708.18 = 5,432.40/x
  3. Step 3: Cross multiply
    9,209.07x = 12,708.18 × 5,432.40
  4. Step 4: Simplify right side
    9,209.07x = 69,035,917.03
  5. Step 5: Solve for x
    x = 69,035,917.03/9,209.07
  6. Step 6: Final answer
    x = 7,496.51

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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.