Home / 10,499.47-15,749.23-9,857.95

Finding the Fourth Proportional to 10,499.47, 15,749.23 and 9,857.95

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Solution

The fourth proportional to 10,499.47, 15,749.23 and 9,857.95 is: 14,786.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,499.47 : 15,749.23 = 9,857.95 : x
  2. Step 2: Convert to fraction form
    10,499.47/15,749.23 = 9,857.95/x
  3. Step 3: Cross multiply
    10,499.47x = 15,749.23 × 9,857.95
  4. Step 4: Simplify right side
    10,499.47x = 155,255,121.88
  5. Step 5: Solve for x
    x = 155,255,121.88/10,499.47
  6. Step 6: Final answer
    x = 14,786.95

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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.