Home / 10,947.73-16,421.47-7,429.03

Finding the Fourth Proportional to 10,947.73, 16,421.47 and 7,429.03

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Solution

The fourth proportional to 10,947.73, 16,421.47 and 7,429.03 is: 11,143.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,947.73 : 16,421.47 = 7,429.03 : x
  2. Step 2: Convert to fraction form
    10,947.73/16,421.47 = 7,429.03/x
  3. Step 3: Cross multiply
    10,947.73x = 16,421.47 × 7,429.03
  4. Step 4: Simplify right side
    10,947.73x = 121,995,593.27
  5. Step 5: Solve for x
    x = 121,995,593.27/10,947.73
  6. Step 6: Final answer
    x = 11,143.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.