Home / 15,527.17-21,427.55-8,453.59

Finding the Fourth Proportional to 15,527.17, 21,427.55 and 8,453.59

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Solution

The fourth proportional to 15,527.17, 21,427.55 and 8,453.59 is: 11,665.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,527.17 : 21,427.55 = 8,453.59 : x
  2. Step 2: Convert to fraction form
    15,527.17/21,427.55 = 8,453.59/x
  3. Step 3: Cross multiply
    15,527.17x = 21,427.55 × 8,453.59
  4. Step 4: Simplify right side
    15,527.17x = 181,139,722.40
  5. Step 5: Solve for x
    x = 181,139,722.40/15,527.17
  6. Step 6: Final answer
    x = 11,665.98

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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.