Home / 11,417.72-15,756.48-6,382.12

Finding the Fourth Proportional to 11,417.72, 15,756.48 and 6,382.12

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Solution

The fourth proportional to 11,417.72, 15,756.48 and 6,382.12 is: 8,807.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,417.72 : 15,756.48 = 6,382.12 : x
  2. Step 2: Convert to fraction form
    11,417.72/15,756.48 = 6,382.12/x
  3. Step 3: Cross multiply
    11,417.72x = 15,756.48 × 6,382.12
  4. Step 4: Simplify right side
    11,417.72x = 100,559,746.14
  5. Step 5: Solve for x
    x = 100,559,746.14/11,417.72
  6. Step 6: Final answer
    x = 8,807.34

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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.