Home / 19,478.40-26,880.48-11,094.72

Finding the Fourth Proportional to 19,478.40, 26,880.48 and 11,094.72

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Solution

The fourth proportional to 19,478.40, 26,880.48 and 11,094.72 is: 15,310.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,478.40 : 26,880.48 = 11,094.72 : x
  2. Step 2: Convert to fraction form
    19,478.40/26,880.48 = 11,094.72/x
  3. Step 3: Cross multiply
    19,478.40x = 26,880.48 × 11,094.72
  4. Step 4: Simplify right side
    19,478.40x = 298,231,399.07
  5. Step 5: Solve for x
    x = 298,231,399.07/19,478.40
  6. Step 6: Final answer
    x = 15,310.88

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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.