Home / 9,121.04-12,585.24-5,395.28

Finding the Fourth Proportional to 9,121.04, 12,585.24 and 5,395.28

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Solution

The fourth proportional to 9,121.04, 12,585.24 and 5,395.28 is: 7,444.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.04 : 12,585.24 = 5,395.28 : x
  2. Step 2: Convert to fraction form
    9,121.04/12,585.24 = 5,395.28/x
  3. Step 3: Cross multiply
    9,121.04x = 12,585.24 × 5,395.28
  4. Step 4: Simplify right side
    9,121.04x = 67,900,893.67
  5. Step 5: Solve for x
    x = 67,900,893.67/9,121.04
  6. Step 6: Final answer
    x = 7,444.42

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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.