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Finding the Fourth Proportional to 11,928.88, 17,812.93 and 9,741.88

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Solution

The fourth proportional to 11,928.88, 17,812.93 and 9,741.88 is: 14,547.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.88 : 17,812.93 = 9,741.88 : x
  2. Step 2: Convert to fraction form
    11,928.88/17,812.93 = 9,741.88/x
  3. Step 3: Cross multiply
    11,928.88x = 17,812.93 × 9,741.88
  4. Step 4: Simplify right side
    11,928.88x = 173,531,426.51
  5. Step 5: Solve for x
    x = 173,531,426.51/11,928.88
  6. Step 6: Final answer
    x = 14,547.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.