Home / 13,325.16-18,384.66-7,735.08

Finding the Fourth Proportional to 13,325.16, 18,384.66 and 7,735.08

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Solution

The fourth proportional to 13,325.16, 18,384.66 and 7,735.08 is: 10,672.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.16 : 18,384.66 = 7,735.08 : x
  2. Step 2: Convert to fraction form
    13,325.16/18,384.66 = 7,735.08/x
  3. Step 3: Cross multiply
    13,325.16x = 18,384.66 × 7,735.08
  4. Step 4: Simplify right side
    13,325.16x = 142,206,815.87
  5. Step 5: Solve for x
    x = 142,206,815.87/13,325.16
  6. Step 6: Final answer
    x = 10,672.05

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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.