Home / 12,902.36-19,347.06-5,981.72

Finding the Fourth Proportional to 12,902.36, 19,347.06 and 5,981.72

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Solution

The fourth proportional to 12,902.36, 19,347.06 and 5,981.72 is: 8,969.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,902.36 : 19,347.06 = 5,981.72 : x
  2. Step 2: Convert to fraction form
    12,902.36/19,347.06 = 5,981.72/x
  3. Step 3: Cross multiply
    12,902.36x = 19,347.06 × 5,981.72
  4. Step 4: Simplify right side
    12,902.36x = 115,728,695.74
  5. Step 5: Solve for x
    x = 115,728,695.74/12,902.36
  6. Step 6: Final answer
    x = 8,969.58

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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.