Home / 9,513.66-13,127.67-5,320.86

Finding the Fourth Proportional to 9,513.66, 13,127.67 and 5,320.86

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Solution

The fourth proportional to 9,513.66, 13,127.67 and 5,320.86 is: 7,342.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,513.66 : 13,127.67 = 5,320.86 : x
  2. Step 2: Convert to fraction form
    9,513.66/13,127.67 = 5,320.86/x
  3. Step 3: Cross multiply
    9,513.66x = 13,127.67 × 5,320.86
  4. Step 4: Simplify right side
    9,513.66x = 69,850,494.20
  5. Step 5: Solve for x
    x = 69,850,494.20/9,513.66
  6. Step 6: Final answer
    x = 7,342.13

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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.