Home / 9,115.04-12,563.62-7,223.28

Finding the Fourth Proportional to 9,115.04, 12,563.62 and 7,223.28

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Solution

The fourth proportional to 9,115.04, 12,563.62 and 7,223.28 is: 9,956.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.04 : 12,563.62 = 7,223.28 : x
  2. Step 2: Convert to fraction form
    9,115.04/12,563.62 = 7,223.28/x
  3. Step 3: Cross multiply
    9,115.04x = 12,563.62 × 7,223.28
  4. Step 4: Simplify right side
    9,115.04x = 90,750,545.07
  5. Step 5: Solve for x
    x = 90,750,545.07/9,115.04
  6. Step 6: Final answer
    x = 9,956.13

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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.