Home / 13,878.72-19,158.93-8,849.79

Finding the Fourth Proportional to 13,878.72, 19,158.93 and 8,849.79

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Solution

The fourth proportional to 13,878.72, 19,158.93 and 8,849.79 is: 12,216.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,878.72 : 19,158.93 = 8,849.79 : x
  2. Step 2: Convert to fraction form
    13,878.72/19,158.93 = 8,849.79/x
  3. Step 3: Cross multiply
    13,878.72x = 19,158.93 × 8,849.79
  4. Step 4: Simplify right side
    13,878.72x = 169,552,507.12
  5. Step 5: Solve for x
    x = 169,552,507.12/13,878.72
  6. Step 6: Final answer
    x = 12,216.73

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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.