Home / 19,151.31-28,732.02-8,760.63

Finding the Fourth Proportional to 19,151.31, 28,732.02 and 8,760.63

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Solution

The fourth proportional to 19,151.31, 28,732.02 and 8,760.63 is: 13,143.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,151.31 : 28,732.02 = 8,760.63 : x
  2. Step 2: Convert to fraction form
    19,151.31/28,732.02 = 8,760.63/x
  3. Step 3: Cross multiply
    19,151.31x = 28,732.02 × 8,760.63
  4. Step 4: Simplify right side
    19,151.31x = 251,710,596.37
  5. Step 5: Solve for x
    x = 251,710,596.37/19,151.31
  6. Step 6: Final answer
    x = 13,143.26

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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.