Home / 13,549.75-18,688.17-10,355.11

Finding the Fourth Proportional to 13,549.75, 18,688.17 and 10,355.11

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Solution

The fourth proportional to 13,549.75, 18,688.17 and 10,355.11 is: 14,282.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.75 : 18,688.17 = 10,355.11 : x
  2. Step 2: Convert to fraction form
    13,549.75/18,688.17 = 10,355.11/x
  3. Step 3: Cross multiply
    13,549.75x = 18,688.17 × 10,355.11
  4. Step 4: Simplify right side
    13,549.75x = 193,518,056.05
  5. Step 5: Solve for x
    x = 193,518,056.05/13,549.75
  6. Step 6: Final answer
    x = 14,282.04

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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.