Home / 19,489.11-26,877.02-12,772.30

Finding the Fourth Proportional to 19,489.11, 26,877.02 and 12,772.30

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Solution

The fourth proportional to 19,489.11, 26,877.02 and 12,772.30 is: 17,614.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,489.11 : 26,877.02 = 12,772.30 : x
  2. Step 2: Convert to fraction form
    19,489.11/26,877.02 = 12,772.30/x
  3. Step 3: Cross multiply
    19,489.11x = 26,877.02 × 12,772.30
  4. Step 4: Simplify right side
    19,489.11x = 343,281,362.55
  5. Step 5: Solve for x
    x = 343,281,362.55/19,489.11
  6. Step 6: Final answer
    x = 17,614.01

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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.