Home / 9,176.10-13,778.55-5,288.10

Finding the Fourth Proportional to 9,176.10, 13,778.55 and 5,288.10

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Solution

The fourth proportional to 9,176.10, 13,778.55 and 5,288.10 is: 7,940.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,176.10 : 13,778.55 = 5,288.10 : x
  2. Step 2: Convert to fraction form
    9,176.10/13,778.55 = 5,288.10/x
  3. Step 3: Cross multiply
    9,176.10x = 13,778.55 × 5,288.10
  4. Step 4: Simplify right side
    9,176.10x = 72,862,350.26
  5. Step 5: Solve for x
    x = 72,862,350.26/9,176.10
  6. Step 6: Final answer
    x = 7,940.45

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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.