Home / 7,998.96-11,038.56-4,643.76

Finding the Fourth Proportional to 7,998.96, 11,038.56 and 4,643.76

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Solution

The fourth proportional to 7,998.96, 11,038.56 and 4,643.76 is: 6,408.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998.96 : 11,038.56 = 4,643.76 : x
  2. Step 2: Convert to fraction form
    7,998.96/11,038.56 = 4,643.76/x
  3. Step 3: Cross multiply
    7,998.96x = 11,038.56 × 4,643.76
  4. Step 4: Simplify right side
    7,998.96x = 51,260,423.39
  5. Step 5: Solve for x
    x = 51,260,423.39/7,998.96
  6. Step 6: Final answer
    x = 6,408.39

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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.