Home / 19,326.93-28,989.45-11,326.16

Finding the Fourth Proportional to 19,326.93, 28,989.45 and 11,326.16

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Solution

The fourth proportional to 19,326.93, 28,989.45 and 11,326.16 is: 16,988.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,326.93 : 28,989.45 = 11,326.16 : x
  2. Step 2: Convert to fraction form
    19,326.93/28,989.45 = 11,326.16/x
  3. Step 3: Cross multiply
    19,326.93x = 28,989.45 × 11,326.16
  4. Step 4: Simplify right side
    19,326.93x = 328,339,149.01
  5. Step 5: Solve for x
    x = 328,339,149.01/19,326.93
  6. Step 6: Final answer
    x = 16,988.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.