Home / 10,638.18-15,939.99-6,259.62

Finding the Fourth Proportional to 10,638.18, 15,939.99 and 6,259.62

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Solution

The fourth proportional to 10,638.18, 15,939.99 and 6,259.62 is: 9,379.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,638.18 : 15,939.99 = 6,259.62 : x
  2. Step 2: Convert to fraction form
    10,638.18/15,939.99 = 6,259.62/x
  3. Step 3: Cross multiply
    10,638.18x = 15,939.99 × 6,259.62
  4. Step 4: Simplify right side
    10,638.18x = 99,778,280.20
  5. Step 5: Solve for x
    x = 99,778,280.20/10,638.18
  6. Step 6: Final answer
    x = 9,379.26

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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.