Home / 15,186.24-20,948.72-12,356.64

Finding the Fourth Proportional to 15,186.24, 20,948.72 and 12,356.64

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Solution

The fourth proportional to 15,186.24, 20,948.72 and 12,356.64 is: 17,045.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,186.24 : 20,948.72 = 12,356.64 : x
  2. Step 2: Convert to fraction form
    15,186.24/20,948.72 = 12,356.64/x
  3. Step 3: Cross multiply
    15,186.24x = 20,948.72 × 12,356.64
  4. Step 4: Simplify right side
    15,186.24x = 258,855,791.50
  5. Step 5: Solve for x
    x = 258,855,791.50/15,186.24
  6. Step 6: Final answer
    x = 17,045.42

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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.