Home / 13,403.49-18,496.86-7,435.20

Finding the Fourth Proportional to 13,403.49, 18,496.86 and 7,435.20

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Solution

The fourth proportional to 13,403.49, 18,496.86 and 7,435.20 is: 10,260.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.49 : 18,496.86 = 7,435.20 : x
  2. Step 2: Convert to fraction form
    13,403.49/18,496.86 = 7,435.20/x
  3. Step 3: Cross multiply
    13,403.49x = 18,496.86 × 7,435.20
  4. Step 4: Simplify right side
    13,403.49x = 137,527,853.47
  5. Step 5: Solve for x
    x = 137,527,853.47/13,403.49
  6. Step 6: Final answer
    x = 10,260.60

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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.