Home / 9,178.68-12,666.06-5,200.77

Finding the Fourth Proportional to 9,178.68, 12,666.06 and 5,200.77

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Solution

The fourth proportional to 9,178.68, 12,666.06 and 5,200.77 is: 7,176.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,178.68 : 12,666.06 = 5,200.77 : x
  2. Step 2: Convert to fraction form
    9,178.68/12,666.06 = 5,200.77/x
  3. Step 3: Cross multiply
    9,178.68x = 12,666.06 × 5,200.77
  4. Step 4: Simplify right side
    9,178.68x = 65,873,264.87
  5. Step 5: Solve for x
    x = 65,873,264.87/9,178.68
  6. Step 6: Final answer
    x = 7,176.77

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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.