Home / 8,943.05-12,341.48-5,408.61

Finding the Fourth Proportional to 8,943.05, 12,341.48 and 5,408.61

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Solution

The fourth proportional to 8,943.05, 12,341.48 and 5,408.61 is: 7,463.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.05 : 12,341.48 = 5,408.61 : x
  2. Step 2: Convert to fraction form
    8,943.05/12,341.48 = 5,408.61/x
  3. Step 3: Cross multiply
    8,943.05x = 12,341.48 × 5,408.61
  4. Step 4: Simplify right side
    8,943.05x = 66,750,225.10
  5. Step 5: Solve for x
    x = 66,750,225.10/8,943.05
  6. Step 6: Final answer
    x = 7,463.93

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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.