Home / 10,215.12-14,098.80-6,239.76

Finding the Fourth Proportional to 10,215.12, 14,098.80 and 6,239.76

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Solution

The fourth proportional to 10,215.12, 14,098.80 and 6,239.76 is: 8,612.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215.12 : 14,098.80 = 6,239.76 : x
  2. Step 2: Convert to fraction form
    10,215.12/14,098.80 = 6,239.76/x
  3. Step 3: Cross multiply
    10,215.12x = 14,098.80 × 6,239.76
  4. Step 4: Simplify right side
    10,215.12x = 87,973,128.29
  5. Step 5: Solve for x
    x = 87,973,128.29/10,215.12
  6. Step 6: Final answer
    x = 8,612.05

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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.