Home / 15,117.29-20,847.56-11,525.94

Finding the Fourth Proportional to 15,117.29, 20,847.56 and 11,525.94

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Solution

The fourth proportional to 15,117.29, 20,847.56 and 11,525.94 is: 15,894.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,117.29 : 20,847.56 = 11,525.94 : x
  2. Step 2: Convert to fraction form
    15,117.29/20,847.56 = 11,525.94/x
  3. Step 3: Cross multiply
    15,117.29x = 20,847.56 × 11,525.94
  4. Step 4: Simplify right side
    15,117.29x = 240,287,668.08
  5. Step 5: Solve for x
    x = 240,287,668.08/15,117.29
  6. Step 6: Final answer
    x = 15,894.89

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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.