Home / 9,647.28-13,313.50-5,398.20

Finding the Fourth Proportional to 9,647.28, 13,313.50 and 5,398.20

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Solution

The fourth proportional to 9,647.28, 13,313.50 and 5,398.20 is: 7,449.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,647.28 : 13,313.50 = 5,398.20 : x
  2. Step 2: Convert to fraction form
    9,647.28/13,313.50 = 5,398.20/x
  3. Step 3: Cross multiply
    9,647.28x = 13,313.50 × 5,398.20
  4. Step 4: Simplify right side
    9,647.28x = 71,868,922.20
  5. Step 5: Solve for x
    x = 71,868,922.20/9,647.28
  6. Step 6: Final answer
    x = 7,449.66

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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.