Home / 8,936.19-12,332.50-5,160.05

Finding the Fourth Proportional to 8,936.19, 12,332.50 and 5,160.05

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Solution

The fourth proportional to 8,936.19, 12,332.50 and 5,160.05 is: 7,121.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.19 : 12,332.50 = 5,160.05 : x
  2. Step 2: Convert to fraction form
    8,936.19/12,332.50 = 5,160.05/x
  3. Step 3: Cross multiply
    8,936.19x = 12,332.50 × 5,160.05
  4. Step 4: Simplify right side
    8,936.19x = 63,636,316.63
  5. Step 5: Solve for x
    x = 63,636,316.63/8,936.19
  6. Step 6: Final answer
    x = 7,121.19

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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.