Home / 10,239.71-14,127.39-8,348.03

Finding the Fourth Proportional to 10,239.71, 14,127.39 and 8,348.03

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Solution

The fourth proportional to 10,239.71, 14,127.39 and 8,348.03 is: 11,517.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,239.71 : 14,127.39 = 8,348.03 : x
  2. Step 2: Convert to fraction form
    10,239.71/14,127.39 = 8,348.03/x
  3. Step 3: Cross multiply
    10,239.71x = 14,127.39 × 8,348.03
  4. Step 4: Simplify right side
    10,239.71x = 117,935,875.54
  5. Step 5: Solve for x
    x = 117,935,875.54/10,239.71
  6. Step 6: Final answer
    x = 11,517.50

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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.