Home / 19,878.26-27,432.51-10,926.00

Finding the Fourth Proportional to 19,878.26, 27,432.51 and 10,926.00

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Solution

The fourth proportional to 19,878.26, 27,432.51 and 10,926.00 is: 15,078.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,878.26 : 27,432.51 = 10,926.00 : x
  2. Step 2: Convert to fraction form
    19,878.26/27,432.51 = 10,926.00/x
  3. Step 3: Cross multiply
    19,878.26x = 27,432.51 × 10,926.00
  4. Step 4: Simplify right side
    19,878.26x = 299,727,467.10
  5. Step 5: Solve for x
    x = 299,727,467.10/19,878.26
  6. Step 6: Final answer
    x = 15,078.16

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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.