Home / 12,135.15-16,707.43-9,443.10

Finding the Fourth Proportional to 12,135.15, 16,707.43 and 9,443.10

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Solution

The fourth proportional to 12,135.15, 16,707.43 and 9,443.10 is: 13,001.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135.15 : 16,707.43 = 9,443.10 : x
  2. Step 2: Convert to fraction form
    12,135.15/16,707.43 = 9,443.10/x
  3. Step 3: Cross multiply
    12,135.15x = 16,707.43 × 9,443.10
  4. Step 4: Simplify right side
    12,135.15x = 157,769,912.71
  5. Step 5: Solve for x
    x = 157,769,912.71/12,135.15
  6. Step 6: Final answer
    x = 13,001.07

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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.