Home / 9,435.28-13,023.72-5,712.40

Finding the Fourth Proportional to 9,435.28, 13,023.72 and 5,712.40

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Solution

The fourth proportional to 9,435.28, 13,023.72 and 5,712.40 is: 7,884.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,435.28 : 13,023.72 = 5,712.40 : x
  2. Step 2: Convert to fraction form
    9,435.28/13,023.72 = 5,712.40/x
  3. Step 3: Cross multiply
    9,435.28x = 13,023.72 × 5,712.40
  4. Step 4: Simplify right side
    9,435.28x = 74,396,698.13
  5. Step 5: Solve for x
    x = 74,396,698.13/9,435.28
  6. Step 6: Final answer
    x = 7,884.95

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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.