Home / 18,688.52-28,032.68-6,205.07

Finding the Fourth Proportional to 18,688.52, 28,032.68 and 6,205.07

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Solution

The fourth proportional to 18,688.52, 28,032.68 and 6,205.07 is: 9,307.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.52 : 28,032.68 = 6,205.07 : x
  2. Step 2: Convert to fraction form
    18,688.52/28,032.68 = 6,205.07/x
  3. Step 3: Cross multiply
    18,688.52x = 28,032.68 × 6,205.07
  4. Step 4: Simplify right side
    18,688.52x = 173,944,827.28
  5. Step 5: Solve for x
    x = 173,944,827.28/18,688.52
  6. Step 6: Final answer
    x = 9,307.58

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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.