Home / 19,359.75-26,712.34-11,399.07

Finding the Fourth Proportional to 19,359.75, 26,712.34 and 11,399.07

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Solution

The fourth proportional to 19,359.75, 26,712.34 and 11,399.07 is: 15,728.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,359.75 : 26,712.34 = 11,399.07 : x
  2. Step 2: Convert to fraction form
    19,359.75/26,712.34 = 11,399.07/x
  3. Step 3: Cross multiply
    19,359.75x = 26,712.34 × 11,399.07
  4. Step 4: Simplify right side
    19,359.75x = 304,495,776.53
  5. Step 5: Solve for x
    x = 304,495,776.53/19,359.75
  6. Step 6: Final answer
    x = 15,728.29

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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.