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Finding the Fourth Proportional to 10,427.95, 14,379.04 and 6,645.12

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Solution

The fourth proportional to 10,427.95, 14,379.04 and 6,645.12 is: 9,162.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.95 : 14,379.04 = 6,645.12 : x
  2. Step 2: Convert to fraction form
    10,427.95/14,379.04 = 6,645.12/x
  3. Step 3: Cross multiply
    10,427.95x = 14,379.04 × 6,645.12
  4. Step 4: Simplify right side
    10,427.95x = 95,550,509.55
  5. Step 5: Solve for x
    x = 95,550,509.55/10,427.95
  6. Step 6: Final answer
    x = 9,162.92

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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.