Home / 13,360.84-18,436.86-7,695.28

Finding the Fourth Proportional to 13,360.84, 18,436.86 and 7,695.28

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Solution

The fourth proportional to 13,360.84, 18,436.86 and 7,695.28 is: 10,618.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,360.84 : 18,436.86 = 7,695.28 : x
  2. Step 2: Convert to fraction form
    13,360.84/18,436.86 = 7,695.28/x
  3. Step 3: Cross multiply
    13,360.84x = 18,436.86 × 7,695.28
  4. Step 4: Simplify right side
    13,360.84x = 141,876,800.02
  5. Step 5: Solve for x
    x = 141,876,800.02/13,360.84
  6. Step 6: Final answer
    x = 10,618.85

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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.