Home / 10,965.12-16,447.68-4,038.72

Finding the Fourth Proportional to 10,965.12, 16,447.68 and 4,038.72

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Solution

The fourth proportional to 10,965.12, 16,447.68 and 4,038.72 is: 6,058.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,965.12 : 16,447.68 = 4,038.72 : x
  2. Step 2: Convert to fraction form
    10,965.12/16,447.68 = 4,038.72/x
  3. Step 3: Cross multiply
    10,965.12x = 16,447.68 × 4,038.72
  4. Step 4: Simplify right side
    10,965.12x = 66,427,574.17
  5. Step 5: Solve for x
    x = 66,427,574.17/10,965.12
  6. Step 6: Final answer
    x = 6,058.08

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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.