Home / 19,045.50-26,285.88-11,388.25

Finding the Fourth Proportional to 19,045.50, 26,285.88 and 11,388.25

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Solution

The fourth proportional to 19,045.50, 26,285.88 and 11,388.25 is: 15,717.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,045.50 : 26,285.88 = 11,388.25 : x
  2. Step 2: Convert to fraction form
    19,045.50/26,285.88 = 11,388.25/x
  3. Step 3: Cross multiply
    19,045.50x = 26,285.88 × 11,388.25
  4. Step 4: Simplify right side
    19,045.50x = 299,350,172.91
  5. Step 5: Solve for x
    x = 299,350,172.91/19,045.50
  6. Step 6: Final answer
    x = 15,717.63

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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.