Home / 9,288.86-12,818.70-5,200.70

Finding the Fourth Proportional to 9,288.86, 12,818.70 and 5,200.70

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Solution

The fourth proportional to 9,288.86, 12,818.70 and 5,200.70 is: 7,177.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,288.86 : 12,818.70 = 5,200.70 : x
  2. Step 2: Convert to fraction form
    9,288.86/12,818.70 = 5,200.70/x
  3. Step 3: Cross multiply
    9,288.86x = 12,818.70 × 5,200.70
  4. Step 4: Simplify right side
    9,288.86x = 66,666,213.09
  5. Step 5: Solve for x
    x = 66,666,213.09/9,288.86
  6. Step 6: Final answer
    x = 7,177.01

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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.