Home / 8,428.48-11,630.88-4,701.76

Finding the Fourth Proportional to 8,428.48, 11,630.88 and 4,701.76

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Solution

The fourth proportional to 8,428.48, 11,630.88 and 4,701.76 is: 6,488.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428.48 : 11,630.88 = 4,701.76 : x
  2. Step 2: Convert to fraction form
    8,428.48/11,630.88 = 4,701.76/x
  3. Step 3: Cross multiply
    8,428.48x = 11,630.88 × 4,701.76
  4. Step 4: Simplify right side
    8,428.48x = 54,685,606.35
  5. Step 5: Solve for x
    x = 54,685,606.35/8,428.48
  6. Step 6: Final answer
    x = 6,488.19

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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.