Home / 19,370.53-26,731.79-10,987.03

Finding the Fourth Proportional to 19,370.53, 26,731.79 and 10,987.03

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Solution

The fourth proportional to 19,370.53, 26,731.79 and 10,987.03 is: 15,162.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,370.53 : 26,731.79 = 10,987.03 : x
  2. Step 2: Convert to fraction form
    19,370.53/26,731.79 = 10,987.03/x
  3. Step 3: Cross multiply
    19,370.53x = 26,731.79 × 10,987.03
  4. Step 4: Simplify right side
    19,370.53x = 293,702,978.68
  5. Step 5: Solve for x
    x = 293,702,978.68/19,370.53
  6. Step 6: Final answer
    x = 15,162.36

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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.