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Finding the Fourth Proportional to 9,409.40, 14,086.40 and 6,955.16

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Solution

The fourth proportional to 9,409.40, 14,086.40 and 6,955.16 is: 10,412.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,409.40 : 14,086.40 = 6,955.16 : x
  2. Step 2: Convert to fraction form
    9,409.40/14,086.40 = 6,955.16/x
  3. Step 3: Cross multiply
    9,409.40x = 14,086.40 × 6,955.16
  4. Step 4: Simplify right side
    9,409.40x = 97,973,165.82
  5. Step 5: Solve for x
    x = 97,973,165.82/9,409.40
  6. Step 6: Final answer
    x = 10,412.26

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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.