Home / 19,387.83-26,753.16-10,889.31

Finding the Fourth Proportional to 19,387.83, 26,753.16 and 10,889.31

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Solution

The fourth proportional to 19,387.83, 26,753.16 and 10,889.31 is: 15,026.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,387.83 : 26,753.16 = 10,889.31 : x
  2. Step 2: Convert to fraction form
    19,387.83/26,753.16 = 10,889.31/x
  3. Step 3: Cross multiply
    19,387.83x = 26,753.16 × 10,889.31
  4. Step 4: Simplify right side
    19,387.83x = 291,323,452.72
  5. Step 5: Solve for x
    x = 291,323,452.72/19,387.83
  6. Step 6: Final answer
    x = 15,026.10

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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.