Home / 16,314.89-22,509.19-9,143.75

Finding the Fourth Proportional to 16,314.89, 22,509.19 and 9,143.75

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Solution

The fourth proportional to 16,314.89, 22,509.19 and 9,143.75 is: 12,615.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,314.89 : 22,509.19 = 9,143.75 : x
  2. Step 2: Convert to fraction form
    16,314.89/22,509.19 = 9,143.75/x
  3. Step 3: Cross multiply
    16,314.89x = 22,509.19 × 9,143.75
  4. Step 4: Simplify right side
    16,314.89x = 205,818,360.34
  5. Step 5: Solve for x
    x = 205,818,360.34/16,314.89
  6. Step 6: Final answer
    x = 12,615.37

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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.