Home / 15,527.08-21,427.37-8,453.50

Finding the Fourth Proportional to 15,527.08, 21,427.37 and 8,453.50

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Solution

The fourth proportional to 15,527.08, 21,427.37 and 8,453.50 is: 11,665.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,527.08 : 21,427.37 = 8,453.50 : x
  2. Step 2: Convert to fraction form
    15,527.08/21,427.37 = 8,453.50/x
  3. Step 3: Cross multiply
    15,527.08x = 21,427.37 × 8,453.50
  4. Step 4: Simplify right side
    15,527.08x = 181,136,272.30
  5. Step 5: Solve for x
    x = 181,136,272.30/15,527.08
  6. Step 6: Final answer
    x = 11,665.83

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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.