Home / 13,943.96-19,242.66-7,656.32

Finding the Fourth Proportional to 13,943.96, 19,242.66 and 7,656.32

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Solution

The fourth proportional to 13,943.96, 19,242.66 and 7,656.32 is: 10,565.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.96 : 19,242.66 = 7,656.32 : x
  2. Step 2: Convert to fraction form
    13,943.96/19,242.66 = 7,656.32/x
  3. Step 3: Cross multiply
    13,943.96x = 19,242.66 × 7,656.32
  4. Step 4: Simplify right side
    13,943.96x = 147,327,962.61
  5. Step 5: Solve for x
    x = 147,327,962.61/13,943.96
  6. Step 6: Final answer
    x = 10,565.72

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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.