Home / 12,910.08-17,811.84-7,603.20

Finding the Fourth Proportional to 12,910.08, 17,811.84 and 7,603.20

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Solution

The fourth proportional to 12,910.08, 17,811.84 and 7,603.20 is: 10,490.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,910.08 : 17,811.84 = 7,603.20 : x
  2. Step 2: Convert to fraction form
    12,910.08/17,811.84 = 7,603.20/x
  3. Step 3: Cross multiply
    12,910.08x = 17,811.84 × 7,603.20
  4. Step 4: Simplify right side
    12,910.08x = 135,426,981.89
  5. Step 5: Solve for x
    x = 135,426,981.89/12,910.08
  6. Step 6: Final answer
    x = 10,490.02

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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.