Home / 13,352.76-18,426.33-7,689.33

Finding the Fourth Proportional to 13,352.76, 18,426.33 and 7,689.33

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Solution

The fourth proportional to 13,352.76, 18,426.33 and 7,689.33 is: 10,611.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,352.76 : 18,426.33 = 7,689.33 : x
  2. Step 2: Convert to fraction form
    13,352.76/18,426.33 = 7,689.33/x
  3. Step 3: Cross multiply
    13,352.76x = 18,426.33 × 7,689.33
  4. Step 4: Simplify right side
    13,352.76x = 141,686,132.06
  5. Step 5: Solve for x
    x = 141,686,132.06/13,352.76
  6. Step 6: Final answer
    x = 10,611.00

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Half scale
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Double scale
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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.