Home / 15,657.13-21,606.04-8,941.45

Finding the Fourth Proportional to 15,657.13, 21,606.04 and 8,941.45

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Solution

The fourth proportional to 15,657.13, 21,606.04 and 8,941.45 is: 12,338.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,657.13 : 21,606.04 = 8,941.45 : x
  2. Step 2: Convert to fraction form
    15,657.13/21,606.04 = 8,941.45/x
  3. Step 3: Cross multiply
    15,657.13x = 21,606.04 × 8,941.45
  4. Step 4: Simplify right side
    15,657.13x = 193,189,173.62
  5. Step 5: Solve for x
    x = 193,189,173.62/15,657.13
  6. Step 6: Final answer
    x = 12,338.73

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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.