Home / 15,527.12-21,427.00-8,453.39

Finding the Fourth Proportional to 15,527.12, 21,427.00 and 8,453.39

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Solution

The fourth proportional to 15,527.12, 21,427.00 and 8,453.39 is: 11,665.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,527.12 : 21,427.00 = 8,453.39 : x
  2. Step 2: Convert to fraction form
    15,527.12/21,427.00 = 8,453.39/x
  3. Step 3: Cross multiply
    15,527.12x = 21,427.00 × 8,453.39
  4. Step 4: Simplify right side
    15,527.12x = 181,130,659.26
  5. Step 5: Solve for x
    x = 181,130,659.26/15,527.12
  6. Step 6: Final answer
    x = 11,665.44

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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.