Home / 10,102.08-13,940.70-5,625.72

Finding the Fourth Proportional to 10,102.08, 13,940.70 and 5,625.72

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Solution

The fourth proportional to 10,102.08, 13,940.70 and 5,625.72 is: 7,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,102.08 : 13,940.70 = 5,625.72 : x
  2. Step 2: Convert to fraction form
    10,102.08/13,940.70 = 5,625.72/x
  3. Step 3: Cross multiply
    10,102.08x = 13,940.70 × 5,625.72
  4. Step 4: Simplify right side
    10,102.08x = 78,426,474.80
  5. Step 5: Solve for x
    x = 78,426,474.80/10,102.08
  6. Step 6: Final answer
    x = 7,763.40

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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.