Home / 11,347.69-15,661.18-6,871.32

Finding the Fourth Proportional to 11,347.69, 15,661.18 and 6,871.32

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Solution

The fourth proportional to 11,347.69, 15,661.18 and 6,871.32 is: 9,483.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,347.69 : 15,661.18 = 6,871.32 : x
  2. Step 2: Convert to fraction form
    11,347.69/15,661.18 = 6,871.32/x
  3. Step 3: Cross multiply
    11,347.69x = 15,661.18 × 6,871.32
  4. Step 4: Simplify right side
    11,347.69x = 107,612,979.36
  5. Step 5: Solve for x
    x = 107,612,979.36/11,347.69
  6. Step 6: Final answer
    x = 9,483.25

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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.