Home / 8,977.47-12,388.08-5,200.79

Finding the Fourth Proportional to 8,977.47, 12,388.08 and 5,200.79

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Solution

The fourth proportional to 8,977.47, 12,388.08 and 5,200.79 is: 7,176.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977.47 : 12,388.08 = 5,200.79 : x
  2. Step 2: Convert to fraction form
    8,977.47/12,388.08 = 5,200.79/x
  3. Step 3: Cross multiply
    8,977.47x = 12,388.08 × 5,200.79
  4. Step 4: Simplify right side
    8,977.47x = 64,427,740.64
  5. Step 5: Solve for x
    x = 64,427,740.64/8,977.47
  6. Step 6: Final answer
    x = 7,176.60

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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.