Home / 15,665.19-23,501.64-5,135.79

Finding the Fourth Proportional to 15,665.19, 23,501.64 and 5,135.79

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Solution

The fourth proportional to 15,665.19, 23,501.64 and 5,135.79 is: 7,704.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,665.19 : 23,501.64 = 5,135.79 : x
  2. Step 2: Convert to fraction form
    15,665.19/23,501.64 = 5,135.79/x
  3. Step 3: Cross multiply
    15,665.19x = 23,501.64 × 5,135.79
  4. Step 4: Simplify right side
    15,665.19x = 120,699,487.70
  5. Step 5: Solve for x
    x = 120,699,487.70/15,665.19
  6. Step 6: Final answer
    x = 7,704.95

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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.