Home / 15,527.18-21,427.52-8,453.60

Finding the Fourth Proportional to 15,527.18, 21,427.52 and 8,453.60

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Solution

The fourth proportional to 15,527.18, 21,427.52 and 8,453.60 is: 11,665.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,527.18 : 21,427.52 = 8,453.60 : x
  2. Step 2: Convert to fraction form
    15,527.18/21,427.52 = 8,453.60/x
  3. Step 3: Cross multiply
    15,527.18x = 21,427.52 × 8,453.60
  4. Step 4: Simplify right side
    15,527.18x = 181,139,614.02
  5. Step 5: Solve for x
    x = 181,139,614.02/15,527.18
  6. Step 6: Final answer
    x = 11,665.97

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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.