Home / 15,554.13-21,465.20-8,749.33

Finding the Fourth Proportional to 15,554.13, 21,465.20 and 8,749.33

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Solution

The fourth proportional to 15,554.13, 21,465.20 and 8,749.33 is: 12,074.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,554.13 : 21,465.20 = 8,749.33 : x
  2. Step 2: Convert to fraction form
    15,554.13/21,465.20 = 8,749.33/x
  3. Step 3: Cross multiply
    15,554.13x = 21,465.20 × 8,749.33
  4. Step 4: Simplify right side
    15,554.13x = 187,806,140.19
  5. Step 5: Solve for x
    x = 187,806,140.19/15,554.13
  6. Step 6: Final answer
    x = 12,074.36

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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.