Home / 7,851.20-11,783.64-4,156.08

Finding the Fourth Proportional to 7,851.20, 11,783.64 and 4,156.08

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Solution

The fourth proportional to 7,851.20, 11,783.64 and 4,156.08 is: 6,237.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,851.20 : 11,783.64 = 4,156.08 : x
  2. Step 2: Convert to fraction form
    7,851.20/11,783.64 = 4,156.08/x
  3. Step 3: Cross multiply
    7,851.20x = 11,783.64 × 4,156.08
  4. Step 4: Simplify right side
    7,851.20x = 48,973,750.53
  5. Step 5: Solve for x
    x = 48,973,750.53/7,851.20
  6. Step 6: Final answer
    x = 6,237.74

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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.