Home / 9,148.18-12,624.74-5,169.21

Finding the Fourth Proportional to 9,148.18, 12,624.74 and 5,169.21

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Solution

The fourth proportional to 9,148.18, 12,624.74 and 5,169.21 is: 7,133.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,148.18 : 12,624.74 = 5,169.21 : x
  2. Step 2: Convert to fraction form
    9,148.18/12,624.74 = 5,169.21/x
  3. Step 3: Cross multiply
    9,148.18x = 12,624.74 × 5,169.21
  4. Step 4: Simplify right side
    9,148.18x = 65,259,932.26
  5. Step 5: Solve for x
    x = 65,259,932.26/9,148.18
  6. Step 6: Final answer
    x = 7,133.65

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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.