Home / 15,527.46-21,427.32-8,453.74

Finding the Fourth Proportional to 15,527.46, 21,427.32 and 8,453.74

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Solution

The fourth proportional to 15,527.46, 21,427.32 and 8,453.74 is: 11,665.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,527.46 : 21,427.32 = 8,453.74 : x
  2. Step 2: Convert to fraction form
    15,527.46/21,427.32 = 8,453.74/x
  3. Step 3: Cross multiply
    15,527.46x = 21,427.32 × 8,453.74
  4. Step 4: Simplify right side
    15,527.46x = 181,140,992.18
  5. Step 5: Solve for x
    x = 181,140,992.18/15,527.46
  6. Step 6: Final answer
    x = 11,665.85

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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.