Home / 11,222.32-15,488.16-6,506.80

Finding the Fourth Proportional to 11,222.32, 15,488.16 and 6,506.80

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Solution

The fourth proportional to 11,222.32, 15,488.16 and 6,506.80 is: 8,980.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,222.32 : 15,488.16 = 6,506.80 : x
  2. Step 2: Convert to fraction form
    11,222.32/15,488.16 = 6,506.80/x
  3. Step 3: Cross multiply
    11,222.32x = 15,488.16 × 6,506.80
  4. Step 4: Simplify right side
    11,222.32x = 100,778,359.49
  5. Step 5: Solve for x
    x = 100,778,359.49/11,222.32
  6. Step 6: Final answer
    x = 8,980.17

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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.