Home / 13,210.96-18,232.98-8,176.79

Finding the Fourth Proportional to 13,210.96, 18,232.98 and 8,176.79

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Solution

The fourth proportional to 13,210.96, 18,232.98 and 8,176.79 is: 11,285.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.96 : 18,232.98 = 8,176.79 : x
  2. Step 2: Convert to fraction form
    13,210.96/18,232.98 = 8,176.79/x
  3. Step 3: Cross multiply
    13,210.96x = 18,232.98 × 8,176.79
  4. Step 4: Simplify right side
    13,210.96x = 149,087,248.53
  5. Step 5: Solve for x
    x = 149,087,248.53/13,210.96
  6. Step 6: Final answer
    x = 11,285.12

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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.