Home / 10,143.19-13,997.63-5,667.11

Finding the Fourth Proportional to 10,143.19, 13,997.63 and 5,667.11

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Solution

The fourth proportional to 10,143.19, 13,997.63 and 5,667.11 is: 7,820.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.19 : 13,997.63 = 5,667.11 : x
  2. Step 2: Convert to fraction form
    10,143.19/13,997.63 = 5,667.11/x
  3. Step 3: Cross multiply
    10,143.19x = 13,997.63 × 5,667.11
  4. Step 4: Simplify right side
    10,143.19x = 79,326,108.95
  5. Step 5: Solve for x
    x = 79,326,108.95/10,143.19
  6. Step 6: Final answer
    x = 7,820.63

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Double scale
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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.