Home / 12,881.08-19,424.10-12,705.44

Finding the Fourth Proportional to 12,881.08, 19,424.10 and 12,705.44

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Solution

The fourth proportional to 12,881.08, 19,424.10 and 12,705.44 is: 19,159.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,881.08 : 19,424.10 = 12,705.44 : x
  2. Step 2: Convert to fraction form
    12,881.08/19,424.10 = 12,705.44/x
  3. Step 3: Cross multiply
    12,881.08x = 19,424.10 × 12,705.44
  4. Step 4: Simplify right side
    12,881.08x = 246,791,639.98
  5. Step 5: Solve for x
    x = 246,791,639.98/12,881.08
  6. Step 6: Final answer
    x = 19,159.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.