Home / 15,406.80-23,106.60-5,012.88

Finding the Fourth Proportional to 15,406.80, 23,106.60 and 5,012.88

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Solution

The fourth proportional to 15,406.80, 23,106.60 and 5,012.88 is: 7,518.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406.80 : 23,106.60 = 5,012.88 : x
  2. Step 2: Convert to fraction form
    15,406.80/23,106.60 = 5,012.88/x
  3. Step 3: Cross multiply
    15,406.80x = 23,106.60 × 5,012.88
  4. Step 4: Simplify right side
    15,406.80x = 115,830,613.01
  5. Step 5: Solve for x
    x = 115,830,613.01/15,406.80
  6. Step 6: Final answer
    x = 7,518.15

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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.