Home / 11,209.25-15,468.47-6,430.00

Finding the Fourth Proportional to 11,209.25, 15,468.47 and 6,430.00

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Solution

The fourth proportional to 11,209.25, 15,468.47 and 6,430.00 is: 8,873.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.25 : 15,468.47 = 6,430.00 : x
  2. Step 2: Convert to fraction form
    11,209.25/15,468.47 = 6,430.00/x
  3. Step 3: Cross multiply
    11,209.25x = 15,468.47 × 6,430.00
  4. Step 4: Simplify right side
    11,209.25x = 99,462,191.28
  5. Step 5: Solve for x
    x = 99,462,191.28/11,209.25
  6. Step 6: Final answer
    x = 8,873.22

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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.