Home / 14,118.90-19,484.61-7,745.10

Finding the Fourth Proportional to 14,118.90, 19,484.61 and 7,745.10

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Solution

The fourth proportional to 14,118.90, 19,484.61 and 7,745.10 is: 10,688.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,118.90 : 19,484.61 = 7,745.10 : x
  2. Step 2: Convert to fraction form
    14,118.90/19,484.61 = 7,745.10/x
  3. Step 3: Cross multiply
    14,118.90x = 19,484.61 × 7,745.10
  4. Step 4: Simplify right side
    14,118.90x = 150,910,252.91
  5. Step 5: Solve for x
    x = 150,910,252.91/14,118.90
  6. Step 6: Final answer
    x = 10,688.53

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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.