Home / 11,208.08-15,468.36-7,017.68

Finding the Fourth Proportional to 11,208.08, 15,468.36 and 7,017.68

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Solution

The fourth proportional to 11,208.08, 15,468.36 and 7,017.68 is: 9,685.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,208.08 : 15,468.36 = 7,017.68 : x
  2. Step 2: Convert to fraction form
    11,208.08/15,468.36 = 7,017.68/x
  3. Step 3: Cross multiply
    11,208.08x = 15,468.36 × 7,017.68
  4. Step 4: Simplify right side
    11,208.08x = 108,552,000.60
  5. Step 5: Solve for x
    x = 108,552,000.60/11,208.08
  6. Step 6: Final answer
    x = 9,685.16

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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.