Home / 12,347.04-18,520.68-4,851.36

Finding the Fourth Proportional to 12,347.04, 18,520.68 and 4,851.36

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Solution

The fourth proportional to 12,347.04, 18,520.68 and 4,851.36 is: 7,277.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347.04 : 18,520.68 = 4,851.36 : x
  2. Step 2: Convert to fraction form
    12,347.04/18,520.68 = 4,851.36/x
  3. Step 3: Cross multiply
    12,347.04x = 18,520.68 × 4,851.36
  4. Step 4: Simplify right side
    12,347.04x = 89,850,486.12
  5. Step 5: Solve for x
    x = 89,850,486.12/12,347.04
  6. Step 6: Final answer
    x = 7,277.09

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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.