Home / 15,429.40-21,292.46-8,714.97

Finding the Fourth Proportional to 15,429.40, 21,292.46 and 8,714.97

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Solution

The fourth proportional to 15,429.40, 21,292.46 and 8,714.97 is: 12,026.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,429.40 : 21,292.46 = 8,714.97 : x
  2. Step 2: Convert to fraction form
    15,429.40/21,292.46 = 8,714.97/x
  3. Step 3: Cross multiply
    15,429.40x = 21,292.46 × 8,714.97
  4. Step 4: Simplify right side
    15,429.40x = 185,563,150.13
  5. Step 5: Solve for x
    x = 185,563,150.13/15,429.40
  6. Step 6: Final answer
    x = 12,026.60

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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.