Home / 13,106.80-18,110.40-10,475.92

Finding the Fourth Proportional to 13,106.80, 18,110.40 and 10,475.92

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Solution

The fourth proportional to 13,106.80, 18,110.40 and 10,475.92 is: 14,475.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106.80 : 18,110.40 = 10,475.92 : x
  2. Step 2: Convert to fraction form
    13,106.80/18,110.40 = 10,475.92/x
  3. Step 3: Cross multiply
    13,106.80x = 18,110.40 × 10,475.92
  4. Step 4: Simplify right side
    13,106.80x = 189,723,101.57
  5. Step 5: Solve for x
    x = 189,723,101.57/13,106.80
  6. Step 6: Final answer
    x = 14,475.17

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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.