Home / 9,387.06-12,953.70-5,408.75

Finding the Fourth Proportional to 9,387.06, 12,953.70 and 5,408.75

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Solution

The fourth proportional to 9,387.06, 12,953.70 and 5,408.75 is: 7,463.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,387.06 : 12,953.70 = 5,408.75 : x
  2. Step 2: Convert to fraction form
    9,387.06/12,953.70 = 5,408.75/x
  3. Step 3: Cross multiply
    9,387.06x = 12,953.70 × 5,408.75
  4. Step 4: Simplify right side
    9,387.06x = 70,063,260.11
  5. Step 5: Solve for x
    x = 70,063,260.11/9,387.06
  6. Step 6: Final answer
    x = 7,463.81

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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.