Home / 8,458.49-12,688.58-2,911.10

Finding the Fourth Proportional to 8,458.49, 12,688.58 and 2,911.10

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Solution

The fourth proportional to 8,458.49, 12,688.58 and 2,911.10 is: 4,366.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458.49 : 12,688.58 = 2,911.10 : x
  2. Step 2: Convert to fraction form
    8,458.49/12,688.58 = 2,911.10/x
  3. Step 3: Cross multiply
    8,458.49x = 12,688.58 × 2,911.10
  4. Step 4: Simplify right side
    8,458.49x = 36,937,725.24
  5. Step 5: Solve for x
    x = 36,937,725.24/8,458.49
  6. Step 6: Final answer
    x = 4,366.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.