Home / 8,210.48-12,312.70-2,662.40

Finding the Fourth Proportional to 8,210.48, 12,312.70 and 2,662.40

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Solution

The fourth proportional to 8,210.48, 12,312.70 and 2,662.40 is: 3,992.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,210.48 : 12,312.70 = 2,662.40 : x
  2. Step 2: Convert to fraction form
    8,210.48/12,312.70 = 2,662.40/x
  3. Step 3: Cross multiply
    8,210.48x = 12,312.70 × 2,662.40
  4. Step 4: Simplify right side
    8,210.48x = 32,781,332.48
  5. Step 5: Solve for x
    x = 32,781,332.48/8,210.48
  6. Step 6: Final answer
    x = 3,992.62

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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.