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Finding the Fourth Proportional to 12,260.64, 16,914.08 and 7,543.20

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Solution

The fourth proportional to 12,260.64, 16,914.08 and 7,543.20 is: 10,406.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,260.64 : 16,914.08 = 7,543.20 : x
  2. Step 2: Convert to fraction form
    12,260.64/16,914.08 = 7,543.20/x
  3. Step 3: Cross multiply
    12,260.64x = 16,914.08 × 7,543.20
  4. Step 4: Simplify right side
    12,260.64x = 127,586,288.26
  5. Step 5: Solve for x
    x = 127,586,288.26/12,260.64
  6. Step 6: Final answer
    x = 10,406.17

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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.