Home / 8,916.41-12,306.86-5,563.12

Finding the Fourth Proportional to 8,916.41, 12,306.86 and 5,563.12

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Solution

The fourth proportional to 8,916.41, 12,306.86 and 5,563.12 is: 7,678.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916.41 : 12,306.86 = 5,563.12 : x
  2. Step 2: Convert to fraction form
    8,916.41/12,306.86 = 5,563.12/x
  3. Step 3: Cross multiply
    8,916.41x = 12,306.86 × 5,563.12
  4. Step 4: Simplify right side
    8,916.41x = 68,464,539.00
  5. Step 5: Solve for x
    x = 68,464,539.00/8,916.41
  6. Step 6: Final answer
    x = 7,678.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.