Home / 14,311.40-19,750.25-8,342.11

Finding the Fourth Proportional to 14,311.40, 19,750.25 and 8,342.11

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Solution

The fourth proportional to 14,311.40, 19,750.25 and 8,342.11 is: 11,512.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,311.40 : 19,750.25 = 8,342.11 : x
  2. Step 2: Convert to fraction form
    14,311.40/19,750.25 = 8,342.11/x
  3. Step 3: Cross multiply
    14,311.40x = 19,750.25 × 8,342.11
  4. Step 4: Simplify right side
    14,311.40x = 164,758,617.57
  5. Step 5: Solve for x
    x = 164,758,617.57/14,311.40
  6. Step 6: Final answer
    x = 11,512.40

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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.