Home / 18,693.38-28,015.67-7,587.07

Finding the Fourth Proportional to 18,693.38, 28,015.67 and 7,587.07

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Solution

The fourth proportional to 18,693.38, 28,015.67 and 7,587.07 is: 11,370.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693.38 : 28,015.67 = 7,587.07 : x
  2. Step 2: Convert to fraction form
    18,693.38/28,015.67 = 7,587.07/x
  3. Step 3: Cross multiply
    18,693.38x = 28,015.67 × 7,587.07
  4. Step 4: Simplify right side
    18,693.38x = 212,556,798.32
  5. Step 5: Solve for x
    x = 212,556,798.32/18,693.38
  6. Step 6: Final answer
    x = 11,370.70

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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.