Home / 9,318.04-12,858.40-5,125.48

Finding the Fourth Proportional to 9,318.04, 12,858.40 and 5,125.48

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Solution

The fourth proportional to 9,318.04, 12,858.40 and 5,125.48 is: 7,072.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.04 : 12,858.40 = 5,125.48 : x
  2. Step 2: Convert to fraction form
    9,318.04/12,858.40 = 5,125.48/x
  3. Step 3: Cross multiply
    9,318.04x = 12,858.40 × 5,125.48
  4. Step 4: Simplify right side
    9,318.04x = 65,905,472.03
  5. Step 5: Solve for x
    x = 65,905,472.03/9,318.04
  6. Step 6: Final answer
    x = 7,072.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.