Home / 8,977.29-12,389.34-5,201.48

Finding the Fourth Proportional to 8,977.29, 12,389.34 and 5,201.48

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Solution

The fourth proportional to 8,977.29, 12,389.34 and 5,201.48 is: 7,178.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977.29 : 12,389.34 = 5,201.48 : x
  2. Step 2: Convert to fraction form
    8,977.29/12,389.34 = 5,201.48/x
  3. Step 3: Cross multiply
    8,977.29x = 12,389.34 × 5,201.48
  4. Step 4: Simplify right side
    8,977.29x = 64,442,842.28
  5. Step 5: Solve for x
    x = 64,442,842.28/8,977.29
  6. Step 6: Final answer
    x = 7,178.43

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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.