Home / 15,559.22-21,471.49-8,485.63

Finding the Fourth Proportional to 15,559.22, 21,471.49 and 8,485.63

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Solution

The fourth proportional to 15,559.22, 21,471.49 and 8,485.63 is: 11,710.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,559.22 : 21,471.49 = 8,485.63 : x
  2. Step 2: Convert to fraction form
    15,559.22/21,471.49 = 8,485.63/x
  3. Step 3: Cross multiply
    15,559.22x = 21,471.49 × 8,485.63
  4. Step 4: Simplify right side
    15,559.22x = 182,199,119.69
  5. Step 5: Solve for x
    x = 182,199,119.69/15,559.22
  6. Step 6: Final answer
    x = 11,710.04

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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.