Home / 13,325.40-18,389.19-7,356.96

Finding the Fourth Proportional to 13,325.40, 18,389.19 and 7,356.96

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Solution

The fourth proportional to 13,325.40, 18,389.19 and 7,356.96 is: 10,152.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.40 : 18,389.19 = 7,356.96 : x
  2. Step 2: Convert to fraction form
    13,325.40/18,389.19 = 7,356.96/x
  3. Step 3: Cross multiply
    13,325.40x = 18,389.19 × 7,356.96
  4. Step 4: Simplify right side
    13,325.40x = 135,288,535.26
  5. Step 5: Solve for x
    x = 135,288,535.26/13,325.40
  6. Step 6: Final answer
    x = 10,152.68

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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.