Home / 8,547.18-12,821.31-3,616.17

Finding the Fourth Proportional to 8,547.18, 12,821.31 and 3,616.17

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Solution

The fourth proportional to 8,547.18, 12,821.31 and 3,616.17 is: 5,424.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,547.18 : 12,821.31 = 3,616.17 : x
  2. Step 2: Convert to fraction form
    8,547.18/12,821.31 = 3,616.17/x
  3. Step 3: Cross multiply
    8,547.18x = 12,821.31 × 3,616.17
  4. Step 4: Simplify right side
    8,547.18x = 46,364,036.58
  5. Step 5: Solve for x
    x = 46,364,036.58/8,547.18
  6. Step 6: Final answer
    x = 5,424.48

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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.