Home / 9,885.64-13,642.38-5,906.76

Finding the Fourth Proportional to 9,885.64, 13,642.38 and 5,906.76

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Solution

The fourth proportional to 9,885.64, 13,642.38 and 5,906.76 is: 8,151.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,885.64 : 13,642.38 = 5,906.76 : x
  2. Step 2: Convert to fraction form
    9,885.64/13,642.38 = 5,906.76/x
  3. Step 3: Cross multiply
    9,885.64x = 13,642.38 × 5,906.76
  4. Step 4: Simplify right side
    9,885.64x = 80,582,264.49
  5. Step 5: Solve for x
    x = 80,582,264.49/9,885.64
  6. Step 6: Final answer
    x = 8,151.45

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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.