Home / 18,986.30-26,203.16-11,437.07

Finding the Fourth Proportional to 18,986.30, 26,203.16 and 11,437.07

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Solution

The fourth proportional to 18,986.30, 26,203.16 and 11,437.07 is: 15,784.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986.30 : 26,203.16 = 11,437.07 : x
  2. Step 2: Convert to fraction form
    18,986.30/26,203.16 = 11,437.07/x
  3. Step 3: Cross multiply
    18,986.30x = 26,203.16 × 11,437.07
  4. Step 4: Simplify right side
    18,986.30x = 299,687,272.72
  5. Step 5: Solve for x
    x = 299,687,272.72/18,986.30
  6. Step 6: Final answer
    x = 15,784.40

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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.