Home / 19,484.78-26,889.29-10,987.31

Finding the Fourth Proportional to 19,484.78, 26,889.29 and 10,987.31

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Solution

The fourth proportional to 19,484.78, 26,889.29 and 10,987.31 is: 15,162.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,484.78 : 26,889.29 = 10,987.31 : x
  2. Step 2: Convert to fraction form
    19,484.78/26,889.29 = 10,987.31/x
  3. Step 3: Cross multiply
    19,484.78x = 26,889.29 × 10,987.31
  4. Step 4: Simplify right side
    19,484.78x = 295,440,909.97
  5. Step 5: Solve for x
    x = 295,440,909.97/19,484.78
  6. Step 6: Final answer
    x = 15,162.65

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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.