Home / 12,283.36-18,412.48-4,885.76

Finding the Fourth Proportional to 12,283.36, 18,412.48 and 4,885.76

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Solution

The fourth proportional to 12,283.36, 18,412.48 and 4,885.76 is: 7,323.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,283.36 : 18,412.48 = 4,885.76 : x
  2. Step 2: Convert to fraction form
    12,283.36/18,412.48 = 4,885.76/x
  3. Step 3: Cross multiply
    12,283.36x = 18,412.48 × 4,885.76
  4. Step 4: Simplify right side
    12,283.36x = 89,958,958.28
  5. Step 5: Solve for x
    x = 89,958,958.28/12,283.36
  6. Step 6: Final answer
    x = 7,323.64

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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.