Home / 13,090.50-18,065.30-7,501.50

Finding the Fourth Proportional to 13,090.50, 18,065.30 and 7,501.50

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Solution

The fourth proportional to 13,090.50, 18,065.30 and 7,501.50 is: 10,352.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.50 : 18,065.30 = 7,501.50 : x
  2. Step 2: Convert to fraction form
    13,090.50/18,065.30 = 7,501.50/x
  3. Step 3: Cross multiply
    13,090.50x = 18,065.30 × 7,501.50
  4. Step 4: Simplify right side
    13,090.50x = 135,516,810.44
  5. Step 5: Solve for x
    x = 135,516,810.44/13,090.50
  6. Step 6: Final answer
    x = 10,352.30

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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.