Home / 9,402.80-12,974.96-5,625.20

Finding the Fourth Proportional to 9,402.80, 12,974.96 and 5,625.20

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Solution

The fourth proportional to 9,402.80, 12,974.96 and 5,625.20 is: 7,762.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,402.80 : 12,974.96 = 5,625.20 : x
  2. Step 2: Convert to fraction form
    9,402.80/12,974.96 = 5,625.20/x
  3. Step 3: Cross multiply
    9,402.80x = 12,974.96 × 5,625.20
  4. Step 4: Simplify right side
    9,402.80x = 72,986,744.99
  5. Step 5: Solve for x
    x = 72,986,744.99/9,402.80
  6. Step 6: Final answer
    x = 7,762.24

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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.