Home / 13,306.92-19,888.19-12,256.08

Finding the Fourth Proportional to 13,306.92, 19,888.19 and 12,256.08

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Solution

The fourth proportional to 13,306.92, 19,888.19 and 12,256.08 is: 18,317.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.92 : 19,888.19 = 12,256.08 : x
  2. Step 2: Convert to fraction form
    13,306.92/19,888.19 = 12,256.08/x
  3. Step 3: Cross multiply
    13,306.92x = 19,888.19 × 12,256.08
  4. Step 4: Simplify right side
    13,306.92x = 243,751,186.41
  5. Step 5: Solve for x
    x = 243,751,186.41/13,306.92
  6. Step 6: Final answer
    x = 18,317.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.