Home / 14,261.66-19,680.75-7,888.09

Finding the Fourth Proportional to 14,261.66, 19,680.75 and 7,888.09

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Solution

The fourth proportional to 14,261.66, 19,680.75 and 7,888.09 is: 10,885.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,261.66 : 19,680.75 = 7,888.09 : x
  2. Step 2: Convert to fraction form
    14,261.66/19,680.75 = 7,888.09/x
  3. Step 3: Cross multiply
    14,261.66x = 19,680.75 × 7,888.09
  4. Step 4: Simplify right side
    14,261.66x = 155,243,478.07
  5. Step 5: Solve for x
    x = 155,243,478.07/14,261.66
  6. Step 6: Final answer
    x = 10,885.37

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Half scale
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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.