Home / 15,604.56-21,534.48-8,890.02

Finding the Fourth Proportional to 15,604.56, 21,534.48 and 8,890.02

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Solution

The fourth proportional to 15,604.56, 21,534.48 and 8,890.02 is: 12,268.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,604.56 : 21,534.48 = 8,890.02 : x
  2. Step 2: Convert to fraction form
    15,604.56/21,534.48 = 8,890.02/x
  3. Step 3: Cross multiply
    15,604.56x = 21,534.48 × 8,890.02
  4. Step 4: Simplify right side
    15,604.56x = 191,441,957.89
  5. Step 5: Solve for x
    x = 191,441,957.89/15,604.56
  6. Step 6: Final answer
    x = 12,268.33

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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.