Home / 8,518.28-11,737.66-8,403.46

Finding the Fourth Proportional to 8,518.28, 11,737.66 and 8,403.46

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Solution

The fourth proportional to 8,518.28, 11,737.66 and 8,403.46 is: 11,579.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.28 : 11,737.66 = 8,403.46 : x
  2. Step 2: Convert to fraction form
    8,518.28/11,737.66 = 8,403.46/x
  3. Step 3: Cross multiply
    8,518.28x = 11,737.66 × 8,403.46
  4. Step 4: Simplify right side
    8,518.28x = 98,636,956.30
  5. Step 5: Solve for x
    x = 98,636,956.30/8,518.28
  6. Step 6: Final answer
    x = 11,579.45

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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.