Home / 15,404.28-21,258.08-8,330.84

Finding the Fourth Proportional to 15,404.28, 21,258.08 and 8,330.84

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Solution

The fourth proportional to 15,404.28, 21,258.08 and 8,330.84 is: 11,496.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,404.28 : 21,258.08 = 8,330.84 : x
  2. Step 2: Convert to fraction form
    15,404.28/21,258.08 = 8,330.84/x
  3. Step 3: Cross multiply
    15,404.28x = 21,258.08 × 8,330.84
  4. Step 4: Simplify right side
    15,404.28x = 177,097,663.19
  5. Step 5: Solve for x
    x = 177,097,663.19/15,404.28
  6. Step 6: Final answer
    x = 11,496.65

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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.