Home / 12,495.81-18,747.35-5,912.94

Finding the Fourth Proportional to 12,495.81, 18,747.35 and 5,912.94

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Solution

The fourth proportional to 12,495.81, 18,747.35 and 5,912.94 is: 8,871.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,495.81 : 18,747.35 = 5,912.94 : x
  2. Step 2: Convert to fraction form
    12,495.81/18,747.35 = 5,912.94/x
  3. Step 3: Cross multiply
    12,495.81x = 18,747.35 × 5,912.94
  4. Step 4: Simplify right side
    12,495.81x = 110,851,955.71
  5. Step 5: Solve for x
    x = 110,851,955.71/12,495.81
  6. Step 6: Final answer
    x = 8,871.13

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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.