Home / 8,813.46-12,161.43-5,275.92

Finding the Fourth Proportional to 8,813.46, 12,161.43 and 5,275.92

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Solution

The fourth proportional to 8,813.46, 12,161.43 and 5,275.92 is: 7,280.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.46 : 12,161.43 = 5,275.92 : x
  2. Step 2: Convert to fraction form
    8,813.46/12,161.43 = 5,275.92/x
  3. Step 3: Cross multiply
    8,813.46x = 12,161.43 × 5,275.92
  4. Step 4: Simplify right side
    8,813.46x = 64,162,731.77
  5. Step 5: Solve for x
    x = 64,162,731.77/8,813.46
  6. Step 6: Final answer
    x = 7,280.08

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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.