Home / 8,290.28-11,440.76-4,705.47

Finding the Fourth Proportional to 8,290.28, 11,440.76 and 4,705.47

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Solution

The fourth proportional to 8,290.28, 11,440.76 and 4,705.47 is: 6,493.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,290.28 : 11,440.76 = 4,705.47 : x
  2. Step 2: Convert to fraction form
    8,290.28/11,440.76 = 4,705.47/x
  3. Step 3: Cross multiply
    8,290.28x = 11,440.76 × 4,705.47
  4. Step 4: Simplify right side
    8,290.28x = 53,834,152.96
  5. Step 5: Solve for x
    x = 53,834,152.96/8,290.28
  6. Step 6: Final answer
    x = 6,493.65

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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.