Home / 15,166.04-20,911.06-13,394.57

Finding the Fourth Proportional to 15,166.04, 20,911.06 and 13,394.57

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Solution

The fourth proportional to 15,166.04, 20,911.06 and 13,394.57 is: 18,468.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,166.04 : 20,911.06 = 13,394.57 : x
  2. Step 2: Convert to fraction form
    15,166.04/20,911.06 = 13,394.57/x
  3. Step 3: Cross multiply
    15,166.04x = 20,911.06 × 13,394.57
  4. Step 4: Simplify right side
    15,166.04x = 280,094,569.13
  5. Step 5: Solve for x
    x = 280,094,569.13/15,166.04
  6. Step 6: Final answer
    x = 18,468.54

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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.