Home / 12,256.64-16,908.56-7,539.20

Finding the Fourth Proportional to 12,256.64, 16,908.56 and 7,539.20

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Solution

The fourth proportional to 12,256.64, 16,908.56 and 7,539.20 is: 10,400.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,256.64 : 16,908.56 = 7,539.20 : x
  2. Step 2: Convert to fraction form
    12,256.64/16,908.56 = 7,539.20/x
  3. Step 3: Cross multiply
    12,256.64x = 16,908.56 × 7,539.20
  4. Step 4: Simplify right side
    12,256.64x = 127,477,015.55
  5. Step 5: Solve for x
    x = 127,477,015.55/12,256.64
  6. Step 6: Final answer
    x = 10,400.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.