Home / 15,556.67-21,465.38-8,748.72

Finding the Fourth Proportional to 15,556.67, 21,465.38 and 8,748.72

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Solution

The fourth proportional to 15,556.67, 21,465.38 and 8,748.72 is: 12,071.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,556.67 : 21,465.38 = 8,748.72 : x
  2. Step 2: Convert to fraction form
    15,556.67/21,465.38 = 8,748.72/x
  3. Step 3: Cross multiply
    15,556.67x = 21,465.38 × 8,748.72
  4. Step 4: Simplify right side
    15,556.67x = 187,794,555.57
  5. Step 5: Solve for x
    x = 187,794,555.57/15,556.67
  6. Step 6: Final answer
    x = 12,071.65

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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.