Home / 14,279.63-19,713.29-8,903.66

Finding the Fourth Proportional to 14,279.63, 19,713.29 and 8,903.66

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Solution

The fourth proportional to 14,279.63, 19,713.29 and 8,903.66 is: 12,291.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.63 : 19,713.29 = 8,903.66 : x
  2. Step 2: Convert to fraction form
    14,279.63/19,713.29 = 8,903.66/x
  3. Step 3: Cross multiply
    14,279.63x = 19,713.29 × 8,903.66
  4. Step 4: Simplify right side
    14,279.63x = 175,520,387.12
  5. Step 5: Solve for x
    x = 175,520,387.12/14,279.63
  6. Step 6: Final answer
    x = 12,291.66

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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.