Home / 14,803.72-20,419.46-9,490.12

Finding the Fourth Proportional to 14,803.72, 20,419.46 and 9,490.12

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Solution

The fourth proportional to 14,803.72, 20,419.46 and 9,490.12 is: 13,090.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,803.72 : 20,419.46 = 9,490.12 : x
  2. Step 2: Convert to fraction form
    14,803.72/20,419.46 = 9,490.12/x
  3. Step 3: Cross multiply
    14,803.72x = 20,419.46 × 9,490.12
  4. Step 4: Simplify right side
    14,803.72x = 193,783,125.74
  5. Step 5: Solve for x
    x = 193,783,125.74/14,803.72
  6. Step 6: Final answer
    x = 13,090.16

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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.