Home / 13,958.42-21,033.62-11,547.40

Finding the Fourth Proportional to 13,958.42, 21,033.62 and 11,547.40

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Solution

The fourth proportional to 13,958.42, 21,033.62 and 11,547.40 is: 17,400.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,958.42 : 21,033.62 = 11,547.40 : x
  2. Step 2: Convert to fraction form
    13,958.42/21,033.62 = 11,547.40/x
  3. Step 3: Cross multiply
    13,958.42x = 21,033.62 × 11,547.40
  4. Step 4: Simplify right side
    13,958.42x = 242,883,623.59
  5. Step 5: Solve for x
    x = 242,883,623.59/13,958.42
  6. Step 6: Final answer
    x = 17,400.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.