Home / 14,279.71-19,713.15-8,977.45

Finding the Fourth Proportional to 14,279.71, 19,713.15 and 8,977.45

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Solution

The fourth proportional to 14,279.71, 19,713.15 and 8,977.45 is: 12,393.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.71 : 19,713.15 = 8,977.45 : x
  2. Step 2: Convert to fraction form
    14,279.71/19,713.15 = 8,977.45/x
  3. Step 3: Cross multiply
    14,279.71x = 19,713.15 × 8,977.45
  4. Step 4: Simplify right side
    14,279.71x = 176,973,675.01
  5. Step 5: Solve for x
    x = 176,973,675.01/14,279.71
  6. Step 6: Final answer
    x = 12,393.37

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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.