Home / 18,749.42-25,844.19-12,697.81

Finding the Fourth Proportional to 18,749.42, 25,844.19 and 12,697.81

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Solution

The fourth proportional to 18,749.42, 25,844.19 and 12,697.81 is: 17,502.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,749.42 : 25,844.19 = 12,697.81 : x
  2. Step 2: Convert to fraction form
    18,749.42/25,844.19 = 12,697.81/x
  3. Step 3: Cross multiply
    18,749.42x = 25,844.19 × 12,697.81
  4. Step 4: Simplify right side
    18,749.42x = 328,164,683.08
  5. Step 5: Solve for x
    x = 328,164,683.08/18,749.42
  6. Step 6: Final answer
    x = 17,502.65

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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.