Home / 10,312.11-14,219.96-6,119.55

Finding the Fourth Proportional to 10,312.11, 14,219.96 and 6,119.55

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Solution

The fourth proportional to 10,312.11, 14,219.96 and 6,119.55 is: 8,438.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,312.11 : 14,219.96 = 6,119.55 : x
  2. Step 2: Convert to fraction form
    10,312.11/14,219.96 = 6,119.55/x
  3. Step 3: Cross multiply
    10,312.11x = 14,219.96 × 6,119.55
  4. Step 4: Simplify right side
    10,312.11x = 87,019,725.62
  5. Step 5: Solve for x
    x = 87,019,725.62/10,312.11
  6. Step 6: Final answer
    x = 8,438.60

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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.