Home / 8,430.48-11,638.24-6,537.76

Finding the Fourth Proportional to 8,430.48, 11,638.24 and 6,537.76

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Solution

The fourth proportional to 8,430.48, 11,638.24 and 6,537.76 is: 9,025.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.48 : 11,638.24 = 6,537.76 : x
  2. Step 2: Convert to fraction form
    8,430.48/11,638.24 = 6,537.76/x
  3. Step 3: Cross multiply
    8,430.48x = 11,638.24 × 6,537.76
  4. Step 4: Simplify right side
    8,430.48x = 76,088,019.94
  5. Step 5: Solve for x
    x = 76,088,019.94/8,430.48
  6. Step 6: Final answer
    x = 9,025.35

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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.