Home / 19,119.86-28,680.27-9,257.30

Finding the Fourth Proportional to 19,119.86, 28,680.27 and 9,257.30

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Solution

The fourth proportional to 19,119.86, 28,680.27 and 9,257.30 is: 13,886.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.86 : 28,680.27 = 9,257.30 : x
  2. Step 2: Convert to fraction form
    19,119.86/28,680.27 = 9,257.30/x
  3. Step 3: Cross multiply
    19,119.86x = 28,680.27 × 9,257.30
  4. Step 4: Simplify right side
    19,119.86x = 265,501,863.47
  5. Step 5: Solve for x
    x = 265,501,863.47/19,119.86
  6. Step 6: Final answer
    x = 13,886.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.