Home / 7,288.11-10,909.55-5,889.78

Finding the Fourth Proportional to 7,288.11, 10,909.55 and 5,889.78

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Solution

The fourth proportional to 7,288.11, 10,909.55 and 5,889.78 is: 8,816.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,288.11 : 10,909.55 = 5,889.78 : x
  2. Step 2: Convert to fraction form
    7,288.11/10,909.55 = 5,889.78/x
  3. Step 3: Cross multiply
    7,288.11x = 10,909.55 × 5,889.78
  4. Step 4: Simplify right side
    7,288.11x = 64,254,864.12
  5. Step 5: Solve for x
    x = 64,254,864.12/7,288.11
  6. Step 6: Final answer
    x = 8,816.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.