Home / 14,743.52-20,345.84-8,775.12

Finding the Fourth Proportional to 14,743.52, 20,345.84 and 8,775.12

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Solution

The fourth proportional to 14,743.52, 20,345.84 and 8,775.12 is: 12,109.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,743.52 : 20,345.84 = 8,775.12 : x
  2. Step 2: Convert to fraction form
    14,743.52/20,345.84 = 8,775.12/x
  3. Step 3: Cross multiply
    14,743.52x = 20,345.84 × 8,775.12
  4. Step 4: Simplify right side
    14,743.52x = 178,537,187.50
  5. Step 5: Solve for x
    x = 178,537,187.50/14,743.52
  6. Step 6: Final answer
    x = 12,109.54

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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.