Home / 19,878.19-27,432.60-10,926.07

Finding the Fourth Proportional to 19,878.19, 27,432.60 and 10,926.07

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Solution

The fourth proportional to 19,878.19, 27,432.60 and 10,926.07 is: 15,078.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,878.19 : 27,432.60 = 10,926.07 : x
  2. Step 2: Convert to fraction form
    19,878.19/27,432.60 = 10,926.07/x
  3. Step 3: Cross multiply
    19,878.19x = 27,432.60 × 10,926.07
  4. Step 4: Simplify right side
    19,878.19x = 299,730,507.88
  5. Step 5: Solve for x
    x = 299,730,507.88/19,878.19
  6. Step 6: Final answer
    x = 15,078.36

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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.