Home / 12,972.40-19,452.20-4,206.17

Finding the Fourth Proportional to 12,972.40, 19,452.20 and 4,206.17

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Solution

The fourth proportional to 12,972.40, 19,452.20 and 4,206.17 is: 6,307.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,972.40 : 19,452.20 = 4,206.17 : x
  2. Step 2: Convert to fraction form
    12,972.40/19,452.20 = 4,206.17/x
  3. Step 3: Cross multiply
    12,972.40x = 19,452.20 × 4,206.17
  4. Step 4: Simplify right side
    12,972.40x = 81,819,287.67
  5. Step 5: Solve for x
    x = 81,819,287.67/12,972.40
  6. Step 6: Final answer
    x = 6,307.18

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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.