Home / 8,547.12-12,822.51-2,704.20

Finding the Fourth Proportional to 8,547.12, 12,822.51 and 2,704.20

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Solution

The fourth proportional to 8,547.12, 12,822.51 and 2,704.20 is: 4,056.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,547.12 : 12,822.51 = 2,704.20 : x
  2. Step 2: Convert to fraction form
    8,547.12/12,822.51 = 2,704.20/x
  3. Step 3: Cross multiply
    8,547.12x = 12,822.51 × 2,704.20
  4. Step 4: Simplify right side
    8,547.12x = 34,674,631.54
  5. Step 5: Solve for x
    x = 34,674,631.54/8,547.12
  6. Step 6: Final answer
    x = 4,056.88

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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.