Home / 12,972.32-19,457.76-4,207.04

Finding the Fourth Proportional to 12,972.32, 19,457.76 and 4,207.04

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Solution

The fourth proportional to 12,972.32, 19,457.76 and 4,207.04 is: 6,310.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,972.32 : 19,457.76 = 4,207.04 : x
  2. Step 2: Convert to fraction form
    12,972.32/19,457.76 = 4,207.04/x
  3. Step 3: Cross multiply
    12,972.32x = 19,457.76 × 4,207.04
  4. Step 4: Simplify right side
    12,972.32x = 81,859,574.63
  5. Step 5: Solve for x
    x = 81,859,574.63/12,972.32
  6. Step 6: Final answer
    x = 6,310.33

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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.