Home / 15,364.28-21,207.52-10,328.72

Finding the Fourth Proportional to 15,364.28, 21,207.52 and 10,328.72

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Solution

The fourth proportional to 15,364.28, 21,207.52 and 10,328.72 is: 14,256.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,364.28 : 21,207.52 = 10,328.72 : x
  2. Step 2: Convert to fraction form
    15,364.28/21,207.52 = 10,328.72/x
  3. Step 3: Cross multiply
    15,364.28x = 21,207.52 × 10,328.72
  4. Step 4: Simplify right side
    15,364.28x = 219,046,442.85
  5. Step 5: Solve for x
    x = 219,046,442.85/15,364.28
  6. Step 6: Final answer
    x = 14,256.86

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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.