Home / 14,987.52-20,671.08-12,756.72

Finding the Fourth Proportional to 14,987.52, 20,671.08 and 12,756.72

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Solution

The fourth proportional to 14,987.52, 20,671.08 and 12,756.72 is: 17,594.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,987.52 : 20,671.08 = 12,756.72 : x
  2. Step 2: Convert to fraction form
    14,987.52/20,671.08 = 12,756.72/x
  3. Step 3: Cross multiply
    14,987.52x = 20,671.08 × 12,756.72
  4. Step 4: Simplify right side
    14,987.52x = 263,695,179.66
  5. Step 5: Solve for x
    x = 263,695,179.66/14,987.52
  6. Step 6: Final answer
    x = 17,594.32

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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.