Home / 14,979.75-20,672.06-8,695.77

Finding the Fourth Proportional to 14,979.75, 20,672.06 and 8,695.77

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Solution

The fourth proportional to 14,979.75, 20,672.06 and 8,695.77 is: 12,000.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,979.75 : 20,672.06 = 8,695.77 : x
  2. Step 2: Convert to fraction form
    14,979.75/20,672.06 = 8,695.77/x
  3. Step 3: Cross multiply
    14,979.75x = 20,672.06 × 8,695.77
  4. Step 4: Simplify right side
    14,979.75x = 179,759,435.71
  5. Step 5: Solve for x
    x = 179,759,435.71/14,979.75
  6. Step 6: Final answer
    x = 12,000.16

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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.