Home / 18,115.16-24,975.53-11,730.40

Finding the Fourth Proportional to 18,115.16, 24,975.53 and 11,730.40

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Solution

The fourth proportional to 18,115.16, 24,975.53 and 11,730.40 is: 16,172.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,115.16 : 24,975.53 = 11,730.40 : x
  2. Step 2: Convert to fraction form
    18,115.16/24,975.53 = 11,730.40/x
  3. Step 3: Cross multiply
    18,115.16x = 24,975.53 × 11,730.40
  4. Step 4: Simplify right side
    18,115.16x = 292,972,957.11
  5. Step 5: Solve for x
    x = 292,972,957.11/18,115.16
  6. Step 6: Final answer
    x = 16,172.81

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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.