Home / 7,408.47-11,113.27-2,478.13

Finding the Fourth Proportional to 7,408.47, 11,113.27 and 2,478.13

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Solution

The fourth proportional to 7,408.47, 11,113.27 and 2,478.13 is: 3,717.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.47 : 11,113.27 = 2,478.13 : x
  2. Step 2: Convert to fraction form
    7,408.47/11,113.27 = 2,478.13/x
  3. Step 3: Cross multiply
    7,408.47x = 11,113.27 × 2,478.13
  4. Step 4: Simplify right side
    7,408.47x = 27,540,127.79
  5. Step 5: Solve for x
    x = 27,540,127.79/7,408.47
  6. Step 6: Final answer
    x = 3,717.38

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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.