Home / 13,110.04-18,091.70-7,141.70

Finding the Fourth Proportional to 13,110.04, 18,091.70 and 7,141.70

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Solution

The fourth proportional to 13,110.04, 18,091.70 and 7,141.70 is: 9,855.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.04 : 18,091.70 = 7,141.70 : x
  2. Step 2: Convert to fraction form
    13,110.04/18,091.70 = 7,141.70/x
  3. Step 3: Cross multiply
    13,110.04x = 18,091.70 × 7,141.70
  4. Step 4: Simplify right side
    13,110.04x = 129,205,503.41
  5. Step 5: Solve for x
    x = 129,205,503.41/13,110.04
  6. Step 6: Final answer
    x = 9,855.46

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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.