Home / 10,158.20-14,018.22-5,681.90

Finding the Fourth Proportional to 10,158.20, 14,018.22 and 5,681.90

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Solution

The fourth proportional to 10,158.20, 14,018.22 and 5,681.90 is: 7,840.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,158.20 : 14,018.22 = 5,681.90 : x
  2. Step 2: Convert to fraction form
    10,158.20/14,018.22 = 5,681.90/x
  3. Step 3: Cross multiply
    10,158.20x = 14,018.22 × 5,681.90
  4. Step 4: Simplify right side
    10,158.20x = 79,650,124.22
  5. Step 5: Solve for x
    x = 79,650,124.22/10,158.20
  6. Step 6: Final answer
    x = 7,840.97

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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.