Home / 15,118.04-20,859.66-8,827.56

Finding the Fourth Proportional to 15,118.04, 20,859.66 and 8,827.56

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Solution

The fourth proportional to 15,118.04, 20,859.66 and 8,827.56 is: 12,180.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,118.04 : 20,859.66 = 8,827.56 : x
  2. Step 2: Convert to fraction form
    15,118.04/20,859.66 = 8,827.56/x
  3. Step 3: Cross multiply
    15,118.04x = 20,859.66 × 8,827.56
  4. Step 4: Simplify right side
    15,118.04x = 184,139,900.23
  5. Step 5: Solve for x
    x = 184,139,900.23/15,118.04
  6. Step 6: Final answer
    x = 12,180.14

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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.