Home / 13,059.07-18,021.54-7,090.72

Finding the Fourth Proportional to 13,059.07, 18,021.54 and 7,090.72

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Solution

The fourth proportional to 13,059.07, 18,021.54 and 7,090.72 is: 9,785.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,059.07 : 18,021.54 = 7,090.72 : x
  2. Step 2: Convert to fraction form
    13,059.07/18,021.54 = 7,090.72/x
  3. Step 3: Cross multiply
    13,059.07x = 18,021.54 × 7,090.72
  4. Step 4: Simplify right side
    13,059.07x = 127,785,694.11
  5. Step 5: Solve for x
    x = 127,785,694.11/13,059.07
  6. Step 6: Final answer
    x = 9,785.21

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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.