Home / 13,610.72-20,416.28-4,845.40

Finding the Fourth Proportional to 13,610.72, 20,416.28 and 4,845.40

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Solution

The fourth proportional to 13,610.72, 20,416.28 and 4,845.40 is: 7,268.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,610.72 : 20,416.28 = 4,845.40 : x
  2. Step 2: Convert to fraction form
    13,610.72/20,416.28 = 4,845.40/x
  3. Step 3: Cross multiply
    13,610.72x = 20,416.28 × 4,845.40
  4. Step 4: Simplify right side
    13,610.72x = 98,925,043.11
  5. Step 5: Solve for x
    x = 98,925,043.11/13,610.72
  6. Step 6: Final answer
    x = 7,268.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.