Home / 14,989.72-20,689.16-11,224.48

Finding the Fourth Proportional to 14,989.72, 20,689.16 and 11,224.48

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Solution

The fourth proportional to 14,989.72, 20,689.16 and 11,224.48 is: 15,492.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,989.72 : 20,689.16 = 11,224.48 : x
  2. Step 2: Convert to fraction form
    14,989.72/20,689.16 = 11,224.48/x
  3. Step 3: Cross multiply
    14,989.72x = 20,689.16 × 11,224.48
  4. Step 4: Simplify right side
    14,989.72x = 232,225,062.64
  5. Step 5: Solve for x
    x = 232,225,062.64/14,989.72
  6. Step 6: Final answer
    x = 15,492.29

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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.