Home / 15,222.60-20,982.08-10,185.02

Finding the Fourth Proportional to 15,222.60, 20,982.08 and 10,185.02

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Solution

The fourth proportional to 15,222.60, 20,982.08 and 10,185.02 is: 14,038.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,222.60 : 20,982.08 = 10,185.02 : x
  2. Step 2: Convert to fraction form
    15,222.60/20,982.08 = 10,185.02/x
  3. Step 3: Cross multiply
    15,222.60x = 20,982.08 × 10,185.02
  4. Step 4: Simplify right side
    15,222.60x = 213,702,904.44
  5. Step 5: Solve for x
    x = 213,702,904.44/15,222.60
  6. Step 6: Final answer
    x = 14,038.53

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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.