Home / 8,403.23-12,603.76-3,472.21

Finding the Fourth Proportional to 8,403.23, 12,603.76 and 3,472.21

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Solution

The fourth proportional to 8,403.23, 12,603.76 and 3,472.21 is: 5,207.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.23 : 12,603.76 = 3,472.21 : x
  2. Step 2: Convert to fraction form
    8,403.23/12,603.76 = 3,472.21/x
  3. Step 3: Cross multiply
    8,403.23x = 12,603.76 × 3,472.21
  4. Step 4: Simplify right side
    8,403.23x = 43,762,901.51
  5. Step 5: Solve for x
    x = 43,762,901.51/8,403.23
  6. Step 6: Final answer
    x = 5,207.87

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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.