Home / 11,122.08-15,348.80-6,154.08

Finding the Fourth Proportional to 11,122.08, 15,348.80 and 6,154.08

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Solution

The fourth proportional to 11,122.08, 15,348.80 and 6,154.08 is: 8,492.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.08 : 15,348.80 = 6,154.08 : x
  2. Step 2: Convert to fraction form
    11,122.08/15,348.80 = 6,154.08/x
  3. Step 3: Cross multiply
    11,122.08x = 15,348.80 × 6,154.08
  4. Step 4: Simplify right side
    11,122.08x = 94,457,743.10
  5. Step 5: Solve for x
    x = 94,457,743.10/11,122.08
  6. Step 6: Final answer
    x = 8,492.81

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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.