Home / 11,009.08-16,513.90-9,439.30

Finding the Fourth Proportional to 11,009.08, 16,513.90 and 9,439.30

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Solution

The fourth proportional to 11,009.08, 16,513.90 and 9,439.30 is: 14,159.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,009.08 : 16,513.90 = 9,439.30 : x
  2. Step 2: Convert to fraction form
    11,009.08/16,513.90 = 9,439.30/x
  3. Step 3: Cross multiply
    11,009.08x = 16,513.90 × 9,439.30
  4. Step 4: Simplify right side
    11,009.08x = 155,879,656.27
  5. Step 5: Solve for x
    x = 155,879,656.27/11,009.08
  6. Step 6: Final answer
    x = 14,159.19

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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.