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Finding the Fourth Proportional to 8,565.40, 11,817.48 and 5,029.48

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Solution

The fourth proportional to 8,565.40, 11,817.48 and 5,029.48 is: 6,939.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,565.40 : 11,817.48 = 5,029.48 : x
  2. Step 2: Convert to fraction form
    8,565.40/11,817.48 = 5,029.48/x
  3. Step 3: Cross multiply
    8,565.40x = 11,817.48 × 5,029.48
  4. Step 4: Simplify right side
    8,565.40x = 59,435,779.31
  5. Step 5: Solve for x
    x = 59,435,779.31/8,565.40
  6. Step 6: Final answer
    x = 6,939.05

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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.