Home / 15,782.12-23,669.07-4,686.20

Finding the Fourth Proportional to 15,782.12, 23,669.07 and 4,686.20

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Solution

The fourth proportional to 15,782.12, 23,669.07 and 4,686.20 is: 7,028.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,782.12 : 23,669.07 = 4,686.20 : x
  2. Step 2: Convert to fraction form
    15,782.12/23,669.07 = 4,686.20/x
  3. Step 3: Cross multiply
    15,782.12x = 23,669.07 × 4,686.20
  4. Step 4: Simplify right side
    15,782.12x = 110,917,877.49
  5. Step 5: Solve for x
    x = 110,917,877.49/15,782.12
  6. Step 6: Final answer
    x = 7,028.07

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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.