Home / 8,657.17-11,946.90-5,120.62

Finding the Fourth Proportional to 8,657.17, 11,946.90 and 5,120.62

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Solution

The fourth proportional to 8,657.17, 11,946.90 and 5,120.62 is: 7,066.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,657.17 : 11,946.90 = 5,120.62 : x
  2. Step 2: Convert to fraction form
    8,657.17/11,946.90 = 5,120.62/x
  3. Step 3: Cross multiply
    8,657.17x = 11,946.90 × 5,120.62
  4. Step 4: Simplify right side
    8,657.17x = 61,175,535.08
  5. Step 5: Solve for x
    x = 61,175,535.08/8,657.17
  6. Step 6: Final answer
    x = 7,066.46

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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.