Home / 13,403.74-18,496.47-7,435.28

Finding the Fourth Proportional to 13,403.74, 18,496.47 and 7,435.28

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Solution

The fourth proportional to 13,403.74, 18,496.47 and 7,435.28 is: 10,260.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.74 : 18,496.47 = 7,435.28 : x
  2. Step 2: Convert to fraction form
    13,403.74/18,496.47 = 7,435.28/x
  3. Step 3: Cross multiply
    13,403.74x = 18,496.47 × 7,435.28
  4. Step 4: Simplify right side
    13,403.74x = 137,526,433.46
  5. Step 5: Solve for x
    x = 137,526,433.46/13,403.74
  6. Step 6: Final answer
    x = 10,260.30

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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.