Home / 15,397.06-21,248.04-8,682.03

Finding the Fourth Proportional to 15,397.06, 21,248.04 and 8,682.03

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Solution

The fourth proportional to 15,397.06, 21,248.04 and 8,682.03 is: 11,981.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,397.06 : 21,248.04 = 8,682.03 : x
  2. Step 2: Convert to fraction form
    15,397.06/21,248.04 = 8,682.03/x
  3. Step 3: Cross multiply
    15,397.06x = 21,248.04 × 8,682.03
  4. Step 4: Simplify right side
    15,397.06x = 184,476,120.72
  5. Step 5: Solve for x
    x = 184,476,120.72/15,397.06
  6. Step 6: Final answer
    x = 11,981.26

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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.