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Finding the Fourth Proportional to 8,885.99, 12,259.62 and 5,699.05

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Solution

The fourth proportional to 8,885.99, 12,259.62 and 5,699.05 is: 7,862.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,885.99 : 12,259.62 = 5,699.05 : x
  2. Step 2: Convert to fraction form
    8,885.99/12,259.62 = 5,699.05/x
  3. Step 3: Cross multiply
    8,885.99x = 12,259.62 × 5,699.05
  4. Step 4: Simplify right side
    8,885.99x = 69,868,156.71
  5. Step 5: Solve for x
    x = 69,868,156.71/8,885.99
  6. Step 6: Final answer
    x = 7,862.73

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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.