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Finding the Fourth Proportional to 15,046, 20,763.48 and 8,762.56

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Solution

The fourth proportional to 15,046, 20,763.48 and 8,762.56 is: 12,092.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,046 : 20,763.48 = 8,762.56 : x
  2. Step 2: Convert to fraction form
    15,046/20,763.48 = 8,762.56/x
  3. Step 3: Cross multiply
    15,046x = 20,763.48 × 8,762.56
  4. Step 4: Simplify right side
    15,046x = 181,941,239.31
  5. Step 5: Solve for x
    x = 181,941,239.31/15,046
  6. Step 6: Final answer
    x = 12,092.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.