Home / 15,638.22-21,580.59-8,468.01

Finding the Fourth Proportional to 15,638.22, 21,580.59 and 8,468.01

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Solution

The fourth proportional to 15,638.22, 21,580.59 and 8,468.01 is: 11,685.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,638.22 : 21,580.59 = 8,468.01 : x
  2. Step 2: Convert to fraction form
    15,638.22/21,580.59 = 8,468.01/x
  3. Step 3: Cross multiply
    15,638.22x = 21,580.59 × 8,468.01
  4. Step 4: Simplify right side
    15,638.22x = 182,744,651.93
  5. Step 5: Solve for x
    x = 182,744,651.93/15,638.22
  6. Step 6: Final answer
    x = 11,685.77

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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.