Home / 8,726.47-13,090.38-5,240.23

Finding the Fourth Proportional to 8,726.47, 13,090.38 and 5,240.23

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Solution

The fourth proportional to 8,726.47, 13,090.38 and 5,240.23 is: 7,860.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,726.47 : 13,090.38 = 5,240.23 : x
  2. Step 2: Convert to fraction form
    8,726.47/13,090.38 = 5,240.23/x
  3. Step 3: Cross multiply
    8,726.47x = 13,090.38 × 5,240.23
  4. Step 4: Simplify right side
    8,726.47x = 68,596,601.99
  5. Step 5: Solve for x
    x = 68,596,601.99/8,726.47
  6. Step 6: Final answer
    x = 7,860.75

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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.