Home / 12,864.13-19,297.27-3,630.13

Finding the Fourth Proportional to 12,864.13, 19,297.27 and 3,630.13

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Solution

The fourth proportional to 12,864.13, 19,297.27 and 3,630.13 is: 5,445.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.13 : 19,297.27 = 3,630.13 : x
  2. Step 2: Convert to fraction form
    12,864.13/19,297.27 = 3,630.13/x
  3. Step 3: Cross multiply
    12,864.13x = 19,297.27 × 3,630.13
  4. Step 4: Simplify right side
    12,864.13x = 70,051,598.75
  5. Step 5: Solve for x
    x = 70,051,598.75/12,864.13
  6. Step 6: Final answer
    x = 5,445.50

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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.