Home / 13,326.08-18,389.67-7,276.08

Finding the Fourth Proportional to 13,326.08, 18,389.67 and 7,276.08

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Solution

The fourth proportional to 13,326.08, 18,389.67 and 7,276.08 is: 10,040.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.08 : 18,389.67 = 7,276.08 : x
  2. Step 2: Convert to fraction form
    13,326.08/18,389.67 = 7,276.08/x
  3. Step 3: Cross multiply
    13,326.08x = 18,389.67 × 7,276.08
  4. Step 4: Simplify right side
    13,326.08x = 133,804,710.09
  5. Step 5: Solve for x
    x = 133,804,710.09/13,326.08
  6. Step 6: Final answer
    x = 10,040.82

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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.