Home / 9,155.40-12,635.24-5,177.22

Finding the Fourth Proportional to 9,155.40, 12,635.24 and 5,177.22

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Solution

The fourth proportional to 9,155.40, 12,635.24 and 5,177.22 is: 7,145.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.40 : 12,635.24 = 5,177.22 : x
  2. Step 2: Convert to fraction form
    9,155.40/12,635.24 = 5,177.22/x
  3. Step 3: Cross multiply
    9,155.40x = 12,635.24 × 5,177.22
  4. Step 4: Simplify right side
    9,155.40x = 65,415,417.23
  5. Step 5: Solve for x
    x = 65,415,417.23/9,155.40
  6. Step 6: Final answer
    x = 7,145.01

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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.