Home / 15,109.02-20,847.24-8,818.56

Finding the Fourth Proportional to 15,109.02, 20,847.24 and 8,818.56

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Solution

The fourth proportional to 15,109.02, 20,847.24 and 8,818.56 is: 12,167.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,109.02 : 20,847.24 = 8,818.56 : x
  2. Step 2: Convert to fraction form
    15,109.02/20,847.24 = 8,818.56/x
  3. Step 3: Cross multiply
    15,109.02x = 20,847.24 × 8,818.56
  4. Step 4: Simplify right side
    15,109.02x = 183,842,636.77
  5. Step 5: Solve for x
    x = 183,842,636.77/15,109.02
  6. Step 6: Final answer
    x = 12,167.74

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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.