Home / 8,924.62-12,315.80-5,387.98

Finding the Fourth Proportional to 8,924.62, 12,315.80 and 5,387.98

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Solution

The fourth proportional to 8,924.62, 12,315.80 and 5,387.98 is: 7,435.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,924.62 : 12,315.80 = 5,387.98 : x
  2. Step 2: Convert to fraction form
    8,924.62/12,315.80 = 5,387.98/x
  3. Step 3: Cross multiply
    8,924.62x = 12,315.80 × 5,387.98
  4. Step 4: Simplify right side
    8,924.62x = 66,357,284.08
  5. Step 5: Solve for x
    x = 66,357,284.08/8,924.62
  6. Step 6: Final answer
    x = 7,435.31

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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.