Home / 14,478.38-21,717.56-4,090.40

Finding the Fourth Proportional to 14,478.38, 21,717.56 and 4,090.40

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Solution

The fourth proportional to 14,478.38, 21,717.56 and 4,090.40 is: 6,135.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,478.38 : 21,717.56 = 4,090.40 : x
  2. Step 2: Convert to fraction form
    14,478.38/21,717.56 = 4,090.40/x
  3. Step 3: Cross multiply
    14,478.38x = 21,717.56 × 4,090.40
  4. Step 4: Simplify right side
    14,478.38x = 88,833,409.06
  5. Step 5: Solve for x
    x = 88,833,409.06/14,478.38
  6. Step 6: Final answer
    x = 6,135.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.