Home / 15,559.85-21,472.53-8,486.25

Finding the Fourth Proportional to 15,559.85, 21,472.53 and 8,486.25

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Solution

The fourth proportional to 15,559.85, 21,472.53 and 8,486.25 is: 11,710.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,559.85 : 21,472.53 = 8,486.25 : x
  2. Step 2: Convert to fraction form
    15,559.85/21,472.53 = 8,486.25/x
  3. Step 3: Cross multiply
    15,559.85x = 21,472.53 × 8,486.25
  4. Step 4: Simplify right side
    15,559.85x = 182,221,257.71
  5. Step 5: Solve for x
    x = 182,221,257.71/15,559.85
  6. Step 6: Final answer
    x = 11,710.99

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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.