Home / 13,059.90-18,022.59-7,091.55

Finding the Fourth Proportional to 13,059.90, 18,022.59 and 7,091.55

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Solution

The fourth proportional to 13,059.90, 18,022.59 and 7,091.55 is: 9,786.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,059.90 : 18,022.59 = 7,091.55 : x
  2. Step 2: Convert to fraction form
    13,059.90/18,022.59 = 7,091.55/x
  3. Step 3: Cross multiply
    13,059.90x = 18,022.59 × 7,091.55
  4. Step 4: Simplify right side
    13,059.90x = 127,808,098.11
  5. Step 5: Solve for x
    x = 127,808,098.11/13,059.90
  6. Step 6: Final answer
    x = 9,786.30

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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.