Home / 8,317.08-11,459.76-6,428.94

Finding the Fourth Proportional to 8,317.08, 11,459.76 and 6,428.94

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Solution

The fourth proportional to 8,317.08, 11,459.76 and 6,428.94 is: 8,858.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,317.08 : 11,459.76 = 6,428.94 : x
  2. Step 2: Convert to fraction form
    8,317.08/11,459.76 = 6,428.94/x
  3. Step 3: Cross multiply
    8,317.08x = 11,459.76 × 6,428.94
  4. Step 4: Simplify right side
    8,317.08x = 73,674,109.45
  5. Step 5: Solve for x
    x = 73,674,109.45/8,317.08
  6. Step 6: Final answer
    x = 8,858.17

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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.