Home / 15,604.56-21,534.30-8,434.46

Finding the Fourth Proportional to 15,604.56, 21,534.30 and 8,434.46

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Solution

The fourth proportional to 15,604.56, 21,534.30 and 8,434.46 is: 11,639.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,604.56 : 21,534.30 = 8,434.46 : x
  2. Step 2: Convert to fraction form
    15,604.56/21,534.30 = 8,434.46/x
  3. Step 3: Cross multiply
    15,604.56x = 21,534.30 × 8,434.46
  4. Step 4: Simplify right side
    15,604.56x = 181,630,191.98
  5. Step 5: Solve for x
    x = 181,630,191.98/15,604.56
  6. Step 6: Final answer
    x = 11,639.56

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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.