Home / 10,455.09-15,686.49-4,910.24

Finding the Fourth Proportional to 10,455.09, 15,686.49 and 4,910.24

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Solution

The fourth proportional to 10,455.09, 15,686.49 and 4,910.24 is: 7,367.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.09 : 15,686.49 = 4,910.24 : x
  2. Step 2: Convert to fraction form
    10,455.09/15,686.49 = 4,910.24/x
  3. Step 3: Cross multiply
    10,455.09x = 15,686.49 × 4,910.24
  4. Step 4: Simplify right side
    10,455.09x = 77,024,352.23
  5. Step 5: Solve for x
    x = 77,024,352.23/10,455.09
  6. Step 6: Final answer
    x = 7,367.16

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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.