Home / 10,538.91-15,822.26-9,668.55

Finding the Fourth Proportional to 10,538.91, 15,822.26 and 9,668.55

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Solution

The fourth proportional to 10,538.91, 15,822.26 and 9,668.55 is: 14,515.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,538.91 : 15,822.26 = 9,668.55 : x
  2. Step 2: Convert to fraction form
    10,538.91/15,822.26 = 9,668.55/x
  3. Step 3: Cross multiply
    10,538.91x = 15,822.26 × 9,668.55
  4. Step 4: Simplify right side
    10,538.91x = 152,978,364.11
  5. Step 5: Solve for x
    x = 152,978,364.11/10,538.91
  6. Step 6: Final answer
    x = 14,515.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.