Home / 13,829.86-19,085.28-7,542.28

Finding the Fourth Proportional to 13,829.86, 19,085.28 and 7,542.28

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Solution

The fourth proportional to 13,829.86, 19,085.28 and 7,542.28 is: 10,408.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.86 : 19,085.28 = 7,542.28 : x
  2. Step 2: Convert to fraction form
    13,829.86/19,085.28 = 7,542.28/x
  3. Step 3: Cross multiply
    13,829.86x = 19,085.28 × 7,542.28
  4. Step 4: Simplify right side
    13,829.86x = 143,946,525.64
  5. Step 5: Solve for x
    x = 143,946,525.64/13,829.86
  6. Step 6: Final answer
    x = 10,408.39

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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.