Home / 13,110.49-18,103.14-10,688.23

Finding the Fourth Proportional to 13,110.49, 18,103.14 and 10,688.23

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Solution

The fourth proportional to 13,110.49, 18,103.14 and 10,688.23 is: 14,758.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.49 : 18,103.14 = 10,688.23 : x
  2. Step 2: Convert to fraction form
    13,110.49/18,103.14 = 10,688.23/x
  3. Step 3: Cross multiply
    13,110.49x = 18,103.14 × 10,688.23
  4. Step 4: Simplify right side
    13,110.49x = 193,490,524.04
  5. Step 5: Solve for x
    x = 193,490,524.04/13,110.49
  6. Step 6: Final answer
    x = 14,758.45

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Double scale
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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.