Home / 8,315.70-12,473.57-5,547.78

Finding the Fourth Proportional to 8,315.70, 12,473.57 and 5,547.78

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Solution

The fourth proportional to 8,315.70, 12,473.57 and 5,547.78 is: 8,321.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.70 : 12,473.57 = 5,547.78 : x
  2. Step 2: Convert to fraction form
    8,315.70/12,473.57 = 5,547.78/x
  3. Step 3: Cross multiply
    8,315.70x = 12,473.57 × 5,547.78
  4. Step 4: Simplify right side
    8,315.70x = 69,200,594.44
  5. Step 5: Solve for x
    x = 69,200,594.44/8,315.70
  6. Step 6: Final answer
    x = 8,321.68

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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.