Home / 11,085.81-15,298.61-6,305.64

Finding the Fourth Proportional to 11,085.81, 15,298.61 and 6,305.64

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Solution

The fourth proportional to 11,085.81, 15,298.61 and 6,305.64 is: 8,701.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,085.81 : 15,298.61 = 6,305.64 : x
  2. Step 2: Convert to fraction form
    11,085.81/15,298.61 = 6,305.64/x
  3. Step 3: Cross multiply
    11,085.81x = 15,298.61 × 6,305.64
  4. Step 4: Simplify right side
    11,085.81x = 96,467,495.63
  5. Step 5: Solve for x
    x = 96,467,495.63/11,085.81
  6. Step 6: Final answer
    x = 8,701.89

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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.