Home / 8,603.28-11,875.68-6,475.68

Finding the Fourth Proportional to 8,603.28, 11,875.68 and 6,475.68

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Solution

The fourth proportional to 8,603.28, 11,875.68 and 6,475.68 is: 8,938.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.28 : 11,875.68 = 6,475.68 : x
  2. Step 2: Convert to fraction form
    8,603.28/11,875.68 = 6,475.68/x
  3. Step 3: Cross multiply
    8,603.28x = 11,875.68 × 6,475.68
  4. Step 4: Simplify right side
    8,603.28x = 76,903,103.46
  5. Step 5: Solve for x
    x = 76,903,103.46/8,603.28
  6. Step 6: Final answer
    x = 8,938.81

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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.