Home / 15,178.08-20,948.40-11,587.14

Finding the Fourth Proportional to 15,178.08, 20,948.40 and 11,587.14

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Solution

The fourth proportional to 15,178.08, 20,948.40 and 11,587.14 is: 15,992.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,178.08 : 20,948.40 = 11,587.14 : x
  2. Step 2: Convert to fraction form
    15,178.08/20,948.40 = 11,587.14/x
  3. Step 3: Cross multiply
    15,178.08x = 20,948.40 × 11,587.14
  4. Step 4: Simplify right side
    15,178.08x = 242,732,043.58
  5. Step 5: Solve for x
    x = 242,732,043.58/15,178.08
  6. Step 6: Final answer
    x = 15,992.28

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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.