Home / 13,943.88-19,242.62-7,656.25

Finding the Fourth Proportional to 13,943.88, 19,242.62 and 7,656.25

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Solution

The fourth proportional to 13,943.88, 19,242.62 and 7,656.25 is: 10,565.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.88 : 19,242.62 = 7,656.25 : x
  2. Step 2: Convert to fraction form
    13,943.88/19,242.62 = 7,656.25/x
  3. Step 3: Cross multiply
    13,943.88x = 19,242.62 × 7,656.25
  4. Step 4: Simplify right side
    13,943.88x = 147,326,309.38
  5. Step 5: Solve for x
    x = 147,326,309.38/13,943.88
  6. Step 6: Final answer
    x = 10,565.66

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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.