Home / 14,159.50-19,540.52-7,872.28

Finding the Fourth Proportional to 14,159.50, 19,540.52 and 7,872.28

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Solution

The fourth proportional to 14,159.50, 19,540.52 and 7,872.28 is: 10,863.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,159.50 : 19,540.52 = 7,872.28 : x
  2. Step 2: Convert to fraction form
    14,159.50/19,540.52 = 7,872.28/x
  3. Step 3: Cross multiply
    14,159.50x = 19,540.52 × 7,872.28
  4. Step 4: Simplify right side
    14,159.50x = 153,828,444.79
  5. Step 5: Solve for x
    x = 153,828,444.79/14,159.50
  6. Step 6: Final answer
    x = 10,863.97

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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.