Home / 12,288.51-18,432.36-6,744.47

Finding the Fourth Proportional to 12,288.51, 18,432.36 and 6,744.47

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Solution

The fourth proportional to 12,288.51, 18,432.36 and 6,744.47 is: 10,116.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288.51 : 18,432.36 = 6,744.47 : x
  2. Step 2: Convert to fraction form
    12,288.51/18,432.36 = 6,744.47/x
  3. Step 3: Cross multiply
    12,288.51x = 18,432.36 × 6,744.47
  4. Step 4: Simplify right side
    12,288.51x = 124,316,406.89
  5. Step 5: Solve for x
    x = 124,316,406.89/12,288.51
  6. Step 6: Final answer
    x = 10,116.48

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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.