Home / 11,221.51-15,484.77-6,506.10

Finding the Fourth Proportional to 11,221.51, 15,484.77 and 6,506.10

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Solution

The fourth proportional to 11,221.51, 15,484.77 and 6,506.10 is: 8,977.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.51 : 15,484.77 = 6,506.10 : x
  2. Step 2: Convert to fraction form
    11,221.51/15,484.77 = 6,506.10/x
  3. Step 3: Cross multiply
    11,221.51x = 15,484.77 × 6,506.10
  4. Step 4: Simplify right side
    11,221.51x = 100,745,384.67
  5. Step 5: Solve for x
    x = 100,745,384.67/11,221.51
  6. Step 6: Final answer
    x = 8,977.88

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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.