Home / 13,072.65-18,040.28-7,104.39

Finding the Fourth Proportional to 13,072.65, 18,040.28 and 7,104.39

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Solution

The fourth proportional to 13,072.65, 18,040.28 and 7,104.39 is: 9,804.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,072.65 : 18,040.28 = 7,104.39 : x
  2. Step 2: Convert to fraction form
    13,072.65/18,040.28 = 7,104.39/x
  3. Step 3: Cross multiply
    13,072.65x = 18,040.28 × 7,104.39
  4. Step 4: Simplify right side
    13,072.65x = 128,165,184.83
  5. Step 5: Solve for x
    x = 128,165,184.83/13,072.65
  6. Step 6: Final answer
    x = 9,804.07

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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.