Home / 15,008.20-20,709.53-8,957.32

Finding the Fourth Proportional to 15,008.20, 20,709.53 and 8,957.32

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Solution

The fourth proportional to 15,008.20, 20,709.53 and 8,957.32 is: 12,360.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,008.20 : 20,709.53 = 8,957.32 : x
  2. Step 2: Convert to fraction form
    15,008.20/20,709.53 = 8,957.32/x
  3. Step 3: Cross multiply
    15,008.20x = 20,709.53 × 8,957.32
  4. Step 4: Simplify right side
    15,008.20x = 185,501,824.29
  5. Step 5: Solve for x
    x = 185,501,824.29/15,008.20
  6. Step 6: Final answer
    x = 12,360.03

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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.