Home / 7,439.16-11,142.84-5,587.48

Finding the Fourth Proportional to 7,439.16, 11,142.84 and 5,587.48

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Solution

The fourth proportional to 7,439.16, 11,142.84 and 5,587.48 is: 8,369.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439.16 : 11,142.84 = 5,587.48 : x
  2. Step 2: Convert to fraction form
    7,439.16/11,142.84 = 5,587.48/x
  3. Step 3: Cross multiply
    7,439.16x = 11,142.84 × 5,587.48
  4. Step 4: Simplify right side
    7,439.16x = 62,260,395.64
  5. Step 5: Solve for x
    x = 62,260,395.64/7,439.16
  6. Step 6: Final answer
    x = 8,369.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.