Home / 10,219.95-14,097.75-6,436.61

Finding the Fourth Proportional to 10,219.95, 14,097.75 and 6,436.61

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Solution

The fourth proportional to 10,219.95, 14,097.75 and 6,436.61 is: 8,878.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,219.95 : 14,097.75 = 6,436.61 : x
  2. Step 2: Convert to fraction form
    10,219.95/14,097.75 = 6,436.61/x
  3. Step 3: Cross multiply
    10,219.95x = 14,097.75 × 6,436.61
  4. Step 4: Simplify right side
    10,219.95x = 90,741,648.14
  5. Step 5: Solve for x
    x = 90,741,648.14/10,219.95
  6. Step 6: Final answer
    x = 8,878.87

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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.