Home / 19,288.50-26,616.87-10,789.15

Finding the Fourth Proportional to 19,288.50, 26,616.87 and 10,789.15

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Solution

The fourth proportional to 19,288.50, 26,616.87 and 10,789.15 is: 14,888.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,288.50 : 26,616.87 = 10,789.15 : x
  2. Step 2: Convert to fraction form
    19,288.50/26,616.87 = 10,789.15/x
  3. Step 3: Cross multiply
    19,288.50x = 26,616.87 × 10,789.15
  4. Step 4: Simplify right side
    19,288.50x = 287,173,402.96
  5. Step 5: Solve for x
    x = 287,173,402.96/19,288.50
  6. Step 6: Final answer
    x = 14,888.32

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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.