Home / 14,739.12-20,336.40-10,272.24

Finding the Fourth Proportional to 14,739.12, 20,336.40 and 10,272.24

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Solution

The fourth proportional to 14,739.12, 20,336.40 and 10,272.24 is: 14,173.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,739.12 : 20,336.40 = 10,272.24 : x
  2. Step 2: Convert to fraction form
    14,739.12/20,336.40 = 10,272.24/x
  3. Step 3: Cross multiply
    14,739.12x = 20,336.40 × 10,272.24
  4. Step 4: Simplify right side
    14,739.12x = 208,900,381.54
  5. Step 5: Solve for x
    x = 208,900,381.54/14,739.12
  6. Step 6: Final answer
    x = 14,173.19

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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.