Home / 10,861.95-16,225.53-7,876.70

Finding the Fourth Proportional to 10,861.95, 16,225.53 and 7,876.70

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Solution

The fourth proportional to 10,861.95, 16,225.53 and 7,876.70 is: 11,766.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.95 : 16,225.53 = 7,876.70 : x
  2. Step 2: Convert to fraction form
    10,861.95/16,225.53 = 7,876.70/x
  3. Step 3: Cross multiply
    10,861.95x = 16,225.53 × 7,876.70
  4. Step 4: Simplify right side
    10,861.95x = 127,803,632.15
  5. Step 5: Solve for x
    x = 127,803,632.15/10,861.95
  6. Step 6: Final answer
    x = 11,766.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.