Home / 15,858.96-21,885.66-9,492.12

Finding the Fourth Proportional to 15,858.96, 21,885.66 and 9,492.12

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Solution

The fourth proportional to 15,858.96, 21,885.66 and 9,492.12 is: 13,099.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,858.96 : 21,885.66 = 9,492.12 : x
  2. Step 2: Convert to fraction form
    15,858.96/21,885.66 = 9,492.12/x
  3. Step 3: Cross multiply
    15,858.96x = 21,885.66 × 9,492.12
  4. Step 4: Simplify right side
    15,858.96x = 207,741,311.00
  5. Step 5: Solve for x
    x = 207,741,311.00/15,858.96
  6. Step 6: Final answer
    x = 13,099.30

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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.