Home / 15,810.72-23,720.76-4,717.77

Finding the Fourth Proportional to 15,810.72, 23,720.76 and 4,717.77

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Solution

The fourth proportional to 15,810.72, 23,720.76 and 4,717.77 is: 7,078.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,810.72 : 23,720.76 = 4,717.77 : x
  2. Step 2: Convert to fraction form
    15,810.72/23,720.76 = 4,717.77/x
  3. Step 3: Cross multiply
    15,810.72x = 23,720.76 × 4,717.77
  4. Step 4: Simplify right side
    15,810.72x = 111,909,089.91
  5. Step 5: Solve for x
    x = 111,909,089.91/15,810.72
  6. Step 6: Final answer
    x = 7,078.05

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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.