Home / 11,320.86-15,622.70-6,216.32

Finding the Fourth Proportional to 11,320.86, 15,622.70 and 6,216.32

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Solution

The fourth proportional to 11,320.86, 15,622.70 and 6,216.32 is: 8,578.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.86 : 15,622.70 = 6,216.32 : x
  2. Step 2: Convert to fraction form
    11,320.86/15,622.70 = 6,216.32/x
  3. Step 3: Cross multiply
    11,320.86x = 15,622.70 × 6,216.32
  4. Step 4: Simplify right side
    11,320.86x = 97,115,702.46
  5. Step 5: Solve for x
    x = 97,115,702.46/11,320.86
  6. Step 6: Final answer
    x = 8,578.47

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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.