Home / 14,142.76-19,517.22-7,855.24

Finding the Fourth Proportional to 14,142.76, 19,517.22 and 7,855.24

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Solution

The fourth proportional to 14,142.76, 19,517.22 and 7,855.24 is: 10,840.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,142.76 : 19,517.22 = 7,855.24 : x
  2. Step 2: Convert to fraction form
    14,142.76/19,517.22 = 7,855.24/x
  3. Step 3: Cross multiply
    14,142.76x = 19,517.22 × 7,855.24
  4. Step 4: Simplify right side
    14,142.76x = 153,312,447.23
  5. Step 5: Solve for x
    x = 153,312,447.23/14,142.76
  6. Step 6: Final answer
    x = 10,840.35

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Half scale
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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.