Home / 8,460.49-12,691.58-2,913.10

Finding the Fourth Proportional to 8,460.49, 12,691.58 and 2,913.10

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Solution

The fourth proportional to 8,460.49, 12,691.58 and 2,913.10 is: 4,369.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,460.49 : 12,691.58 = 2,913.10 : x
  2. Step 2: Convert to fraction form
    8,460.49/12,691.58 = 2,913.10/x
  3. Step 3: Cross multiply
    8,460.49x = 12,691.58 × 2,913.10
  4. Step 4: Simplify right side
    8,460.49x = 36,971,841.70
  5. Step 5: Solve for x
    x = 36,971,841.70/8,460.49
  6. Step 6: Final answer
    x = 4,369.94

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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.