Home / 15,527.32-21,427.66-8,453.72

Finding the Fourth Proportional to 15,527.32, 21,427.66 and 8,453.72

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Solution

The fourth proportional to 15,527.32, 21,427.66 and 8,453.72 is: 11,666.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,527.32 : 21,427.66 = 8,453.72 : x
  2. Step 2: Convert to fraction form
    15,527.32/21,427.66 = 8,453.72/x
  3. Step 3: Cross multiply
    15,527.32x = 21,427.66 × 8,453.72
  4. Step 4: Simplify right side
    15,527.32x = 181,143,437.90
  5. Step 5: Solve for x
    x = 181,143,437.90/15,527.32
  6. Step 6: Final answer
    x = 11,666.11

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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.