Home / 15,640.86-23,458.50-7,740.84

Finding the Fourth Proportional to 15,640.86, 23,458.50 and 7,740.84

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Solution

The fourth proportional to 15,640.86, 23,458.50 and 7,740.84 is: 11,609.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,640.86 : 23,458.50 = 7,740.84 : x
  2. Step 2: Convert to fraction form
    15,640.86/23,458.50 = 7,740.84/x
  3. Step 3: Cross multiply
    15,640.86x = 23,458.50 × 7,740.84
  4. Step 4: Simplify right side
    15,640.86x = 181,588,495.14
  5. Step 5: Solve for x
    x = 181,588,495.14/15,640.86
  6. Step 6: Final answer
    x = 11,609.88

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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.