Home / 10,982.96-15,155.91-6,445.01

Finding the Fourth Proportional to 10,982.96, 15,155.91 and 6,445.01

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Solution

The fourth proportional to 10,982.96, 15,155.91 and 6,445.01 is: 8,893.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,982.96 : 15,155.91 = 6,445.01 : x
  2. Step 2: Convert to fraction form
    10,982.96/15,155.91 = 6,445.01/x
  3. Step 3: Cross multiply
    10,982.96x = 15,155.91 × 6,445.01
  4. Step 4: Simplify right side
    10,982.96x = 97,679,915.73
  5. Step 5: Solve for x
    x = 97,679,915.73/10,982.96
  6. Step 6: Final answer
    x = 8,893.77

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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.