Home / 12,705.49-19,065.50-9,924.35

Finding the Fourth Proportional to 12,705.49, 19,065.50 and 9,924.35

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Solution

The fourth proportional to 12,705.49, 19,065.50 and 9,924.35 is: 14,892.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,705.49 : 19,065.50 = 9,924.35 : x
  2. Step 2: Convert to fraction form
    12,705.49/19,065.50 = 9,924.35/x
  3. Step 3: Cross multiply
    12,705.49x = 19,065.50 × 9,924.35
  4. Step 4: Simplify right side
    12,705.49x = 189,212,645.30
  5. Step 5: Solve for x
    x = 189,212,645.30/12,705.49
  6. Step 6: Final answer
    x = 14,892.20

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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.