Home / 10,143.71-13,998.60-5,667.95

Finding the Fourth Proportional to 10,143.71, 13,998.60 and 5,667.95

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Solution

The fourth proportional to 10,143.71, 13,998.60 and 5,667.95 is: 7,821.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.71 : 13,998.60 = 5,667.95 : x
  2. Step 2: Convert to fraction form
    10,143.71/13,998.60 = 5,667.95/x
  3. Step 3: Cross multiply
    10,143.71x = 13,998.60 × 5,667.95
  4. Step 4: Simplify right side
    10,143.71x = 79,343,364.87
  5. Step 5: Solve for x
    x = 79,343,364.87/10,143.71
  6. Step 6: Final answer
    x = 7,821.93

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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.