Home / 15,525.63-21,425.60-8,452.05

Finding the Fourth Proportional to 15,525.63, 21,425.60 and 8,452.05

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Solution

The fourth proportional to 15,525.63, 21,425.60 and 8,452.05 is: 11,663.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.63 : 21,425.60 = 8,452.05 : x
  2. Step 2: Convert to fraction form
    15,525.63/21,425.60 = 8,452.05/x
  3. Step 3: Cross multiply
    15,525.63x = 21,425.60 × 8,452.05
  4. Step 4: Simplify right side
    15,525.63x = 181,090,200.22
  5. Step 5: Solve for x
    x = 181,090,200.22/15,525.63
  6. Step 6: Final answer
    x = 11,663.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.