Home / 9,397.20-12,969.60-5,418.48

Finding the Fourth Proportional to 9,397.20, 12,969.60 and 5,418.48

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Solution

The fourth proportional to 9,397.20, 12,969.60 and 5,418.48 is: 7,478.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,397.20 : 12,969.60 = 5,418.48 : x
  2. Step 2: Convert to fraction form
    9,397.20/12,969.60 = 5,418.48/x
  3. Step 3: Cross multiply
    9,397.20x = 12,969.60 × 5,418.48
  4. Step 4: Simplify right side
    9,397.20x = 70,275,518.21
  5. Step 5: Solve for x
    x = 70,275,518.21/9,397.20
  6. Step 6: Final answer
    x = 7,478.35

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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.