Home / 13,979.41-19,298.01-8,677.35

Finding the Fourth Proportional to 13,979.41, 19,298.01 and 8,677.35

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Solution

The fourth proportional to 13,979.41, 19,298.01 and 8,677.35 is: 11,978.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.41 : 19,298.01 = 8,677.35 : x
  2. Step 2: Convert to fraction form
    13,979.41/19,298.01 = 8,677.35/x
  3. Step 3: Cross multiply
    13,979.41x = 19,298.01 × 8,677.35
  4. Step 4: Simplify right side
    13,979.41x = 167,455,587.07
  5. Step 5: Solve for x
    x = 167,455,587.07/13,979.41
  6. Step 6: Final answer
    x = 11,978.73

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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.