Home / 13,403.36-18,497.76-7,814.72

Finding the Fourth Proportional to 13,403.36, 18,497.76 and 7,814.72

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Solution

The fourth proportional to 13,403.36, 18,497.76 and 7,814.72 is: 10,784.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.36 : 18,497.76 = 7,814.72 : x
  2. Step 2: Convert to fraction form
    13,403.36/18,497.76 = 7,814.72/x
  3. Step 3: Cross multiply
    13,403.36x = 18,497.76 × 7,814.72
  4. Step 4: Simplify right side
    13,403.36x = 144,554,815.03
  5. Step 5: Solve for x
    x = 144,554,815.03/13,403.36
  6. Step 6: Final answer
    x = 10,784.97

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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.