Home / 8,364.47-12,547.31-2,817.99

Finding the Fourth Proportional to 8,364.47, 12,547.31 and 2,817.99

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Solution

The fourth proportional to 8,364.47, 12,547.31 and 2,817.99 is: 4,227.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,364.47 : 12,547.31 = 2,817.99 : x
  2. Step 2: Convert to fraction form
    8,364.47/12,547.31 = 2,817.99/x
  3. Step 3: Cross multiply
    8,364.47x = 12,547.31 × 2,817.99
  4. Step 4: Simplify right side
    8,364.47x = 35,358,180.02
  5. Step 5: Solve for x
    x = 35,358,180.02/8,364.47
  6. Step 6: Final answer
    x = 4,227.19

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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.