Home / 7,386.42-10,198.35-6,915.87

Finding the Fourth Proportional to 7,386.42, 10,198.35 and 6,915.87

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Solution

The fourth proportional to 7,386.42, 10,198.35 and 6,915.87 is: 9,548.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,386.42 : 10,198.35 = 6,915.87 : x
  2. Step 2: Convert to fraction form
    7,386.42/10,198.35 = 6,915.87/x
  3. Step 3: Cross multiply
    7,386.42x = 10,198.35 × 6,915.87
  4. Step 4: Simplify right side
    7,386.42x = 70,530,462.81
  5. Step 5: Solve for x
    x = 70,530,462.81/7,386.42
  6. Step 6: Final answer
    x = 9,548.67

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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.