Home / 15,849.48-21,866.58-9,559.56

Finding the Fourth Proportional to 15,849.48, 21,866.58 and 9,559.56

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Solution

The fourth proportional to 15,849.48, 21,866.58 and 9,559.56 is: 13,188.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,849.48 : 21,866.58 = 9,559.56 : x
  2. Step 2: Convert to fraction form
    15,849.48/21,866.58 = 9,559.56/x
  3. Step 3: Cross multiply
    15,849.48x = 21,866.58 × 9,559.56
  4. Step 4: Simplify right side
    15,849.48x = 209,034,883.50
  5. Step 5: Solve for x
    x = 209,034,883.50/15,849.48
  6. Step 6: Final answer
    x = 13,188.75

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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.