Home / 10,861.16-14,988.99-6,611.55

Finding the Fourth Proportional to 10,861.16, 14,988.99 and 6,611.55

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Solution

The fourth proportional to 10,861.16, 14,988.99 and 6,611.55 is: 9,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.16 : 14,988.99 = 6,611.55 : x
  2. Step 2: Convert to fraction form
    10,861.16/14,988.99 = 6,611.55/x
  3. Step 3: Cross multiply
    10,861.16x = 14,988.99 × 6,611.55
  4. Step 4: Simplify right side
    10,861.16x = 99,100,456.83
  5. Step 5: Solve for x
    x = 99,100,456.83/10,861.16
  6. Step 6: Final answer
    x = 9,124.30

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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.