Home / 13,979.32-21,064.50-11,567.08

Finding the Fourth Proportional to 13,979.32, 21,064.50 and 11,567.08

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Solution

The fourth proportional to 13,979.32, 21,064.50 and 11,567.08 is: 17,429.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.32 : 21,064.50 = 11,567.08 : x
  2. Step 2: Convert to fraction form
    13,979.32/21,064.50 = 11,567.08/x
  3. Step 3: Cross multiply
    13,979.32x = 21,064.50 × 11,567.08
  4. Step 4: Simplify right side
    13,979.32x = 243,654,756.66
  5. Step 5: Solve for x
    x = 243,654,756.66/13,979.32
  6. Step 6: Final answer
    x = 17,429.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.