Home / 15,397.64-21,248.31-8,683.22

Finding the Fourth Proportional to 15,397.64, 21,248.31 and 8,683.22

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Solution

The fourth proportional to 15,397.64, 21,248.31 and 8,683.22 is: 11,982.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,397.64 : 21,248.31 = 8,683.22 : x
  2. Step 2: Convert to fraction form
    15,397.64/21,248.31 = 8,683.22/x
  3. Step 3: Cross multiply
    15,397.64x = 21,248.31 × 8,683.22
  4. Step 4: Simplify right side
    15,397.64x = 184,503,644.12
  5. Step 5: Solve for x
    x = 184,503,644.12/15,397.64
  6. Step 6: Final answer
    x = 11,982.60

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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.