Home / 12,283.04-18,421.83-4,885.52

Finding the Fourth Proportional to 12,283.04, 18,421.83 and 4,885.52

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Solution

The fourth proportional to 12,283.04, 18,421.83 and 4,885.52 is: 7,327.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,283.04 : 18,421.83 = 4,885.52 : x
  2. Step 2: Convert to fraction form
    12,283.04/18,421.83 = 4,885.52/x
  3. Step 3: Cross multiply
    12,283.04x = 18,421.83 × 4,885.52
  4. Step 4: Simplify right side
    12,283.04x = 90,000,126.79
  5. Step 5: Solve for x
    x = 90,000,126.79/12,283.04
  6. Step 6: Final answer
    x = 7,327.19

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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.