Home / 8,387.04-11,575.62-5,406.60

Finding the Fourth Proportional to 8,387.04, 11,575.62 and 5,406.60

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Solution

The fourth proportional to 8,387.04, 11,575.62 and 5,406.60 is: 7,462.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387.04 : 11,575.62 = 5,406.60 : x
  2. Step 2: Convert to fraction form
    8,387.04/11,575.62 = 5,406.60/x
  3. Step 3: Cross multiply
    8,387.04x = 11,575.62 × 5,406.60
  4. Step 4: Simplify right side
    8,387.04x = 62,584,747.09
  5. Step 5: Solve for x
    x = 62,584,747.09/8,387.04
  6. Step 6: Final answer
    x = 7,462.08

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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.