Home / 8,421.49-12,628.56-2,416.24

Finding the Fourth Proportional to 8,421.49, 12,628.56 and 2,416.24

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Solution

The fourth proportional to 8,421.49, 12,628.56 and 2,416.24 is: 3,623.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421.49 : 12,628.56 = 2,416.24 : x
  2. Step 2: Convert to fraction form
    8,421.49/12,628.56 = 2,416.24/x
  3. Step 3: Cross multiply
    8,421.49x = 12,628.56 × 2,416.24
  4. Step 4: Simplify right side
    8,421.49x = 30,513,604.77
  5. Step 5: Solve for x
    x = 30,513,604.77/8,421.49
  6. Step 6: Final answer
    x = 3,623.30

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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.