Home / 9,815.23-13,549.44-6,459.81

Finding the Fourth Proportional to 9,815.23, 13,549.44 and 6,459.81

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Solution

The fourth proportional to 9,815.23, 13,549.44 and 6,459.81 is: 8,917.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,815.23 : 13,549.44 = 6,459.81 : x
  2. Step 2: Convert to fraction form
    9,815.23/13,549.44 = 6,459.81/x
  3. Step 3: Cross multiply
    9,815.23x = 13,549.44 × 6,459.81
  4. Step 4: Simplify right side
    9,815.23x = 87,526,740.26
  5. Step 5: Solve for x
    x = 87,526,740.26/9,815.23
  6. Step 6: Final answer
    x = 8,917.44

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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.