Home / 15,874.18-21,901.93-12,506.55

Finding the Fourth Proportional to 15,874.18, 21,901.93 and 12,506.55

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Solution

The fourth proportional to 15,874.18, 21,901.93 and 12,506.55 is: 17,255.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,874.18 : 21,901.93 = 12,506.55 : x
  2. Step 2: Convert to fraction form
    15,874.18/21,901.93 = 12,506.55/x
  3. Step 3: Cross multiply
    15,874.18x = 21,901.93 × 12,506.55
  4. Step 4: Simplify right side
    15,874.18x = 273,917,582.64
  5. Step 5: Solve for x
    x = 273,917,582.64/15,874.18
  6. Step 6: Final answer
    x = 17,255.54

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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.