Home / 12,318.96-18,491.60-5,302.45

Finding the Fourth Proportional to 12,318.96, 18,491.60 and 5,302.45

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Solution

The fourth proportional to 12,318.96, 18,491.60 and 5,302.45 is: 7,959.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318.96 : 18,491.60 = 5,302.45 : x
  2. Step 2: Convert to fraction form
    12,318.96/18,491.60 = 5,302.45/x
  3. Step 3: Cross multiply
    12,318.96x = 18,491.60 × 5,302.45
  4. Step 4: Simplify right side
    12,318.96x = 98,050,768.69
  5. Step 5: Solve for x
    x = 98,050,768.69/12,318.96
  6. Step 6: Final answer
    x = 7,959.34

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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.