Home / 12,909.02-17,814.68-7,243.46

Finding the Fourth Proportional to 12,909.02, 17,814.68 and 7,243.46

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Solution

The fourth proportional to 12,909.02, 17,814.68 and 7,243.46 is: 9,996.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,909.02 : 17,814.68 = 7,243.46 : x
  2. Step 2: Convert to fraction form
    12,909.02/17,814.68 = 7,243.46/x
  3. Step 3: Cross multiply
    12,909.02x = 17,814.68 × 7,243.46
  4. Step 4: Simplify right side
    12,909.02x = 129,039,921.99
  5. Step 5: Solve for x
    x = 129,039,921.99/12,909.02
  6. Step 6: Final answer
    x = 9,996.11

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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.