Home / 15,875.07-23,780.30-12,738.09

Finding the Fourth Proportional to 15,875.07, 23,780.30 and 12,738.09

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Solution

The fourth proportional to 15,875.07, 23,780.30 and 12,738.09 is: 19,081.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,875.07 : 23,780.30 = 12,738.09 : x
  2. Step 2: Convert to fraction form
    15,875.07/23,780.30 = 12,738.09/x
  3. Step 3: Cross multiply
    15,875.07x = 23,780.30 × 12,738.09
  4. Step 4: Simplify right side
    15,875.07x = 302,915,633.47
  5. Step 5: Solve for x
    x = 302,915,633.47/15,875.07
  6. Step 6: Final answer
    x = 19,081.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.