Home / 18,749.36-25,874.39-12,701.45

Finding the Fourth Proportional to 18,749.36, 25,874.39 and 12,701.45

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Solution

The fourth proportional to 18,749.36, 25,874.39 and 12,701.45 is: 17,528.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,749.36 : 25,874.39 = 12,701.45 : x
  2. Step 2: Convert to fraction form
    18,749.36/25,874.39 = 12,701.45/x
  3. Step 3: Cross multiply
    18,749.36x = 25,874.39 × 12,701.45
  4. Step 4: Simplify right side
    18,749.36x = 328,642,077.99
  5. Step 5: Solve for x
    x = 328,642,077.99/18,749.36
  6. Step 6: Final answer
    x = 17,528.18

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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.