Home / 13,985.15-19,299.87-7,612.11

Finding the Fourth Proportional to 13,985.15, 19,299.87 and 7,612.11

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Solution

The fourth proportional to 13,985.15, 19,299.87 and 7,612.11 is: 10,504.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,985.15 : 19,299.87 = 7,612.11 : x
  2. Step 2: Convert to fraction form
    13,985.15/19,299.87 = 7,612.11/x
  3. Step 3: Cross multiply
    13,985.15x = 19,299.87 × 7,612.11
  4. Step 4: Simplify right side
    13,985.15x = 146,912,733.43
  5. Step 5: Solve for x
    x = 146,912,733.43/13,985.15
  6. Step 6: Final answer
    x = 10,504.91

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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.