Home / 13,360.96-18,441.84-7,773.04

Finding the Fourth Proportional to 13,360.96, 18,441.84 and 7,773.04

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Solution

The fourth proportional to 13,360.96, 18,441.84 and 7,773.04 is: 10,728.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,360.96 : 18,441.84 = 7,773.04 : x
  2. Step 2: Convert to fraction form
    13,360.96/18,441.84 = 7,773.04/x
  3. Step 3: Cross multiply
    13,360.96x = 18,441.84 × 7,773.04
  4. Step 4: Simplify right side
    13,360.96x = 143,349,159.99
  5. Step 5: Solve for x
    x = 143,349,159.99/13,360.96
  6. Step 6: Final answer
    x = 10,728.96

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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.