Home / 14,695.41-20,279.66-8,407.79

Finding the Fourth Proportional to 14,695.41, 20,279.66 and 8,407.79

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Solution

The fourth proportional to 14,695.41, 20,279.66 and 8,407.79 is: 11,602.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,695.41 : 20,279.66 = 8,407.79 : x
  2. Step 2: Convert to fraction form
    14,695.41/20,279.66 = 8,407.79/x
  3. Step 3: Cross multiply
    14,695.41x = 20,279.66 × 8,407.79
  4. Step 4: Simplify right side
    14,695.41x = 170,506,979.11
  5. Step 5: Solve for x
    x = 170,506,979.11/14,695.41
  6. Step 6: Final answer
    x = 11,602.74

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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.