Home / 13,182.92-19,641.25-12,555.98

Finding the Fourth Proportional to 13,182.92, 19,641.25 and 12,555.98

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Solution

The fourth proportional to 13,182.92, 19,641.25 and 12,555.98 is: 18,707.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182.92 : 19,641.25 = 12,555.98 : x
  2. Step 2: Convert to fraction form
    13,182.92/19,641.25 = 12,555.98/x
  3. Step 3: Cross multiply
    13,182.92x = 19,641.25 × 12,555.98
  4. Step 4: Simplify right side
    13,182.92x = 246,615,142.18
  5. Step 5: Solve for x
    x = 246,615,142.18/13,182.92
  6. Step 6: Final answer
    x = 18,707.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.