Home / 12,354.32-18,531.38-4,953.48

Finding the Fourth Proportional to 12,354.32, 18,531.38 and 4,953.48

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Solution

The fourth proportional to 12,354.32, 18,531.38 and 4,953.48 is: 7,430.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,354.32 : 18,531.38 = 4,953.48 : x
  2. Step 2: Convert to fraction form
    12,354.32/18,531.38 = 4,953.48/x
  3. Step 3: Cross multiply
    12,354.32x = 18,531.38 × 4,953.48
  4. Step 4: Simplify right side
    12,354.32x = 91,794,820.20
  5. Step 5: Solve for x
    x = 91,794,820.20/12,354.32
  6. Step 6: Final answer
    x = 7,430.18

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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.