Home / 15,440.03-21,306.69-8,725.51

Finding the Fourth Proportional to 15,440.03, 21,306.69 and 8,725.51

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Solution

The fourth proportional to 15,440.03, 21,306.69 and 8,725.51 is: 12,040.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,440.03 : 21,306.69 = 8,725.51 : x
  2. Step 2: Convert to fraction form
    15,440.03/21,306.69 = 8,725.51/x
  3. Step 3: Cross multiply
    15,440.03x = 21,306.69 × 8,725.51
  4. Step 4: Simplify right side
    15,440.03x = 185,911,789.93
  5. Step 5: Solve for x
    x = 185,911,789.93/15,440.03
  6. Step 6: Final answer
    x = 12,040.89

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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.