Home / 18,895.12-28,342.67-5,747.50

Finding the Fourth Proportional to 18,895.12, 28,342.67 and 5,747.50

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Solution

The fourth proportional to 18,895.12, 28,342.67 and 5,747.50 is: 8,621.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,895.12 : 28,342.67 = 5,747.50 : x
  2. Step 2: Convert to fraction form
    18,895.12/28,342.67 = 5,747.50/x
  3. Step 3: Cross multiply
    18,895.12x = 28,342.67 × 5,747.50
  4. Step 4: Simplify right side
    18,895.12x = 162,899,495.83
  5. Step 5: Solve for x
    x = 162,899,495.83/18,895.12
  6. Step 6: Final answer
    x = 8,621.25

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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.