Home / 19,517.68-26,927.40-11,129.32

Finding the Fourth Proportional to 19,517.68, 26,927.40 and 11,129.32

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Solution

The fourth proportional to 19,517.68, 26,927.40 and 11,129.32 is: 15,354.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,517.68 : 26,927.40 = 11,129.32 : x
  2. Step 2: Convert to fraction form
    19,517.68/26,927.40 = 11,129.32/x
  3. Step 3: Cross multiply
    19,517.68x = 26,927.40 × 11,129.32
  4. Step 4: Simplify right side
    19,517.68x = 299,683,651.37
  5. Step 5: Solve for x
    x = 299,683,651.37/19,517.68
  6. Step 6: Final answer
    x = 15,354.47

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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.