Home / 12,276.49-18,417.56-3,842.51

Finding the Fourth Proportional to 12,276.49, 18,417.56 and 3,842.51

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Solution

The fourth proportional to 12,276.49, 18,417.56 and 3,842.51 is: 5,764.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.49 : 18,417.56 = 3,842.51 : x
  2. Step 2: Convert to fraction form
    12,276.49/18,417.56 = 3,842.51/x
  3. Step 3: Cross multiply
    12,276.49x = 18,417.56 × 3,842.51
  4. Step 4: Simplify right side
    12,276.49x = 70,769,740.40
  5. Step 5: Solve for x
    x = 70,769,740.40/12,276.49
  6. Step 6: Final answer
    x = 5,764.66

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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.