Home / 15,020.16-20,729.37-8,646.99

Finding the Fourth Proportional to 15,020.16, 20,729.37 and 8,646.99

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Solution

The fourth proportional to 15,020.16, 20,729.37 and 8,646.99 is: 11,933.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,020.16 : 20,729.37 = 8,646.99 : x
  2. Step 2: Convert to fraction form
    15,020.16/20,729.37 = 8,646.99/x
  3. Step 3: Cross multiply
    15,020.16x = 20,729.37 × 8,646.99
  4. Step 4: Simplify right side
    15,020.16x = 179,246,655.10
  5. Step 5: Solve for x
    x = 179,246,655.10/15,020.16
  6. Step 6: Final answer
    x = 11,933.74

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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.