Home / 14,309.10-21,461.04-3,920.76

Finding the Fourth Proportional to 14,309.10, 21,461.04 and 3,920.76

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Solution

The fourth proportional to 14,309.10, 21,461.04 and 3,920.76 is: 5,880.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,309.10 : 21,461.04 = 3,920.76 : x
  2. Step 2: Convert to fraction form
    14,309.10/21,461.04 = 3,920.76/x
  3. Step 3: Cross multiply
    14,309.10x = 21,461.04 × 3,920.76
  4. Step 4: Simplify right side
    14,309.10x = 84,143,587.19
  5. Step 5: Solve for x
    x = 84,143,587.19/14,309.10
  6. Step 6: Final answer
    x = 5,880.42

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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.