Home / 9,408.88-12,981.63-5,875.66

Finding the Fourth Proportional to 9,408.88, 12,981.63 and 5,875.66

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Solution

The fourth proportional to 9,408.88, 12,981.63 and 5,875.66 is: 8,106.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,408.88 : 12,981.63 = 5,875.66 : x
  2. Step 2: Convert to fraction form
    9,408.88/12,981.63 = 5,875.66/x
  3. Step 3: Cross multiply
    9,408.88x = 12,981.63 × 5,875.66
  4. Step 4: Simplify right side
    9,408.88x = 76,275,644.13
  5. Step 5: Solve for x
    x = 76,275,644.13/9,408.88
  6. Step 6: Final answer
    x = 8,106.77

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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.