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Finding the Fourth Proportional to 15,458.99, 23,169.49 and 7,127.45

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Solution

The fourth proportional to 15,458.99, 23,169.49 and 7,127.45 is: 10,682.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,458.99 : 23,169.49 = 7,127.45 : x
  2. Step 2: Convert to fraction form
    15,458.99/23,169.49 = 7,127.45/x
  3. Step 3: Cross multiply
    15,458.99x = 23,169.49 × 7,127.45
  4. Step 4: Simplify right side
    15,458.99x = 165,139,247.83
  5. Step 5: Solve for x
    x = 165,139,247.83/15,458.99
  6. Step 6: Final answer
    x = 10,682.41

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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.