Home / 15,165.29-20,927.53-8,450.56

Finding the Fourth Proportional to 15,165.29, 20,927.53 and 8,450.56

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Solution

The fourth proportional to 15,165.29, 20,927.53 and 8,450.56 is: 11,661.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,165.29 : 20,927.53 = 8,450.56 : x
  2. Step 2: Convert to fraction form
    15,165.29/20,927.53 = 8,450.56/x
  3. Step 3: Cross multiply
    15,165.29x = 20,927.53 × 8,450.56
  4. Step 4: Simplify right side
    15,165.29x = 176,849,347.92
  5. Step 5: Solve for x
    x = 176,849,347.92/15,165.29
  6. Step 6: Final answer
    x = 11,661.46

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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.