Home / 13,830.39-19,085.73-7,542.77

Finding the Fourth Proportional to 13,830.39, 19,085.73 and 7,542.77

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Solution

The fourth proportional to 13,830.39, 19,085.73 and 7,542.77 is: 10,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.39 : 19,085.73 = 7,542.77 : x
  2. Step 2: Convert to fraction form
    13,830.39/19,085.73 = 7,542.77/x
  3. Step 3: Cross multiply
    13,830.39x = 19,085.73 × 7,542.77
  4. Step 4: Simplify right side
    13,830.39x = 143,959,176.24
  5. Step 5: Solve for x
    x = 143,959,176.24/13,830.39
  6. Step 6: Final answer
    x = 10,408.90

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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.