Home / 7,103.81-10,586.45-6,890.03

Finding the Fourth Proportional to 7,103.81, 10,586.45 and 6,890.03

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Solution

The fourth proportional to 7,103.81, 10,586.45 and 6,890.03 is: 10,267.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,103.81 : 10,586.45 = 6,890.03 : x
  2. Step 2: Convert to fraction form
    7,103.81/10,586.45 = 6,890.03/x
  3. Step 3: Cross multiply
    7,103.81x = 10,586.45 × 6,890.03
  4. Step 4: Simplify right side
    7,103.81x = 72,940,870.71
  5. Step 5: Solve for x
    x = 72,940,870.71/7,103.81
  6. Step 6: Final answer
    x = 10,267.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.