Home / 15,786.90-23,681.51-4,541.78

Finding the Fourth Proportional to 15,786.90, 23,681.51 and 4,541.78

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Solution

The fourth proportional to 15,786.90, 23,681.51 and 4,541.78 is: 6,813.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,786.90 : 23,681.51 = 4,541.78 : x
  2. Step 2: Convert to fraction form
    15,786.90/23,681.51 = 4,541.78/x
  3. Step 3: Cross multiply
    15,786.90x = 23,681.51 × 4,541.78
  4. Step 4: Simplify right side
    15,786.90x = 107,556,279.05
  5. Step 5: Solve for x
    x = 107,556,279.05/15,786.90
  6. Step 6: Final answer
    x = 6,813.01

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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.