Home / 8,742.10-13,118.62-3,547.98

Finding the Fourth Proportional to 8,742.10, 13,118.62 and 3,547.98

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Solution

The fourth proportional to 8,742.10, 13,118.62 and 3,547.98 is: 5,324.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.10 : 13,118.62 = 3,547.98 : x
  2. Step 2: Convert to fraction form
    8,742.10/13,118.62 = 3,547.98/x
  3. Step 3: Cross multiply
    8,742.10x = 13,118.62 × 3,547.98
  4. Step 4: Simplify right side
    8,742.10x = 46,544,518.05
  5. Step 5: Solve for x
    x = 46,544,518.05/8,742.10
  6. Step 6: Final answer
    x = 5,324.18

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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.