Home / 17,821.56-26,714.70-8,445

Finding the Fourth Proportional to 17,821.56, 26,714.70 and 8,445

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Solution

The fourth proportional to 17,821.56, 26,714.70 and 8,445 is: 12,659.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,821.56 : 26,714.70 = 8,445 : x
  2. Step 2: Convert to fraction form
    17,821.56/26,714.70 = 8,445/x
  3. Step 3: Cross multiply
    17,821.56x = 26,714.70 × 8,445
  4. Step 4: Simplify right side
    17,821.56x = 225,605,641.50
  5. Step 5: Solve for x
    x = 225,605,641.50/17,821.56
  6. Step 6: Final answer
    x = 12,659.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.