Home / 12,574.48-18,861.95-3,809.40

Finding the Fourth Proportional to 12,574.48, 18,861.95 and 3,809.40

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Solution

The fourth proportional to 12,574.48, 18,861.95 and 3,809.40 is: 5,714.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,574.48 : 18,861.95 = 3,809.40 : x
  2. Step 2: Convert to fraction form
    12,574.48/18,861.95 = 3,809.40/x
  3. Step 3: Cross multiply
    12,574.48x = 18,861.95 × 3,809.40
  4. Step 4: Simplify right side
    12,574.48x = 71,852,712.33
  5. Step 5: Solve for x
    x = 71,852,712.33/12,574.48
  6. Step 6: Final answer
    x = 5,714.17

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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.