Home / 18,745.07-28,117.61-4,894.07

Finding the Fourth Proportional to 18,745.07, 28,117.61 and 4,894.07

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Solution

The fourth proportional to 18,745.07, 28,117.61 and 4,894.07 is: 7,341.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745.07 : 28,117.61 = 4,894.07 : x
  2. Step 2: Convert to fraction form
    18,745.07/28,117.61 = 4,894.07/x
  3. Step 3: Cross multiply
    18,745.07x = 28,117.61 × 4,894.07
  4. Step 4: Simplify right side
    18,745.07x = 137,609,493.51
  5. Step 5: Solve for x
    x = 137,609,493.51/18,745.07
  6. Step 6: Final answer
    x = 7,341.10

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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.