Home / 10,543.94-15,811.55-4,299.72

Finding the Fourth Proportional to 10,543.94, 15,811.55 and 4,299.72

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Solution

The fourth proportional to 10,543.94, 15,811.55 and 4,299.72 is: 6,447.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,543.94 : 15,811.55 = 4,299.72 : x
  2. Step 2: Convert to fraction form
    10,543.94/15,811.55 = 4,299.72/x
  3. Step 3: Cross multiply
    10,543.94x = 15,811.55 × 4,299.72
  4. Step 4: Simplify right side
    10,543.94x = 67,985,158.71
  5. Step 5: Solve for x
    x = 67,985,158.71/10,543.94
  6. Step 6: Final answer
    x = 6,447.79

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1.5x scale

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.