Home / 13,723.07-18,937.73-7,755.91

Finding the Fourth Proportional to 13,723.07, 18,937.73 and 7,755.91

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Solution

The fourth proportional to 13,723.07, 18,937.73 and 7,755.91 is: 10,703.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.07 : 18,937.73 = 7,755.91 : x
  2. Step 2: Convert to fraction form
    13,723.07/18,937.73 = 7,755.91/x
  3. Step 3: Cross multiply
    13,723.07x = 18,937.73 × 7,755.91
  4. Step 4: Simplify right side
    13,723.07x = 146,879,301.53
  5. Step 5: Solve for x
    x = 146,879,301.53/13,723.07
  6. Step 6: Final answer
    x = 10,703.10

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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.