Home / 6,516.12-8,987.49-5,621.58

Finding the Fourth Proportional to 6,516.12, 8,987.49 and 5,621.58

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Solution

The fourth proportional to 6,516.12, 8,987.49 and 5,621.58 is: 7,753.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,516.12 : 8,987.49 = 5,621.58 : x
  2. Step 2: Convert to fraction form
    6,516.12/8,987.49 = 5,621.58/x
  3. Step 3: Cross multiply
    6,516.12x = 8,987.49 × 5,621.58
  4. Step 4: Simplify right side
    6,516.12x = 50,523,894.03
  5. Step 5: Solve for x
    x = 50,523,894.03/6,516.12
  6. Step 6: Final answer
    x = 7,753.68

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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.