Home / 8,818.04-12,165.57-5,631.45

Finding the Fourth Proportional to 8,818.04, 12,165.57 and 5,631.45

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Solution

The fourth proportional to 8,818.04, 12,165.57 and 5,631.45 is: 7,769.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.04 : 12,165.57 = 5,631.45 : x
  2. Step 2: Convert to fraction form
    8,818.04/12,165.57 = 5,631.45/x
  3. Step 3: Cross multiply
    8,818.04x = 12,165.57 × 5,631.45
  4. Step 4: Simplify right side
    8,818.04x = 68,509,799.18
  5. Step 5: Solve for x
    x = 68,509,799.18/8,818.04
  6. Step 6: Final answer
    x = 7,769.28

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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.