Home / 9,177.17-12,666.75-5,200.63

Finding the Fourth Proportional to 9,177.17, 12,666.75 and 5,200.63

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Solution

The fourth proportional to 9,177.17, 12,666.75 and 5,200.63 is: 7,178.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,177.17 : 12,666.75 = 5,200.63 : x
  2. Step 2: Convert to fraction form
    9,177.17/12,666.75 = 5,200.63/x
  3. Step 3: Cross multiply
    9,177.17x = 12,666.75 × 5,200.63
  4. Step 4: Simplify right side
    9,177.17x = 65,875,080.05
  5. Step 5: Solve for x
    x = 65,875,080.05/9,177.17
  6. Step 6: Final answer
    x = 7,178.15

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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.