Home / 13,403.81-18,497.87-7,435.11

Finding the Fourth Proportional to 13,403.81, 18,497.87 and 7,435.11

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Solution

The fourth proportional to 13,403.81, 18,497.87 and 7,435.11 is: 10,260.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.81 : 18,497.87 = 7,435.11 : x
  2. Step 2: Convert to fraction form
    13,403.81/18,497.87 = 7,435.11/x
  3. Step 3: Cross multiply
    13,403.81x = 18,497.87 × 7,435.11
  4. Step 4: Simplify right side
    13,403.81x = 137,533,661.04
  5. Step 5: Solve for x
    x = 137,533,661.04/13,403.81
  6. Step 6: Final answer
    x = 10,260.79

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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.