Home / 12,901.75-19,352.63-8,518.20

Finding the Fourth Proportional to 12,901.75, 19,352.63 and 8,518.20

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Solution

The fourth proportional to 12,901.75, 19,352.63 and 8,518.20 is: 12,777.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,901.75 : 19,352.63 = 8,518.20 : x
  2. Step 2: Convert to fraction form
    12,901.75/19,352.63 = 8,518.20/x
  3. Step 3: Cross multiply
    12,901.75x = 19,352.63 × 8,518.20
  4. Step 4: Simplify right side
    12,901.75x = 164,849,572.87
  5. Step 5: Solve for x
    x = 164,849,572.87/12,901.75
  6. Step 6: Final answer
    x = 12,777.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.