Home / 9,401.28-12,972.48-5,623.36

Finding the Fourth Proportional to 9,401.28, 12,972.48 and 5,623.36

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Solution

The fourth proportional to 9,401.28, 12,972.48 and 5,623.36 is: 7,759.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,401.28 : 12,972.48 = 5,623.36 : x
  2. Step 2: Convert to fraction form
    9,401.28/12,972.48 = 5,623.36/x
  3. Step 3: Cross multiply
    9,401.28x = 12,972.48 × 5,623.36
  4. Step 4: Simplify right side
    9,401.28x = 72,948,925.13
  5. Step 5: Solve for x
    x = 72,948,925.13/9,401.28
  6. Step 6: Final answer
    x = 7,759.47

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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.