Home / 9,381.04-12,945.76-5,189.52

Finding the Fourth Proportional to 9,381.04, 12,945.76 and 5,189.52

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Solution

The fourth proportional to 9,381.04, 12,945.76 and 5,189.52 is: 7,161.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,381.04 : 12,945.76 = 5,189.52 : x
  2. Step 2: Convert to fraction form
    9,381.04/12,945.76 = 5,189.52/x
  3. Step 3: Cross multiply
    9,381.04x = 12,945.76 × 5,189.52
  4. Step 4: Simplify right side
    9,381.04x = 67,182,280.44
  5. Step 5: Solve for x
    x = 67,182,280.44/9,381.04
  6. Step 6: Final answer
    x = 7,161.50

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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.