Home / 15,886.83-21,905.94-10,853.80

Finding the Fourth Proportional to 15,886.83, 21,905.94 and 10,853.80

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Solution

The fourth proportional to 15,886.83, 21,905.94 and 10,853.80 is: 14,966.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,886.83 : 21,905.94 = 10,853.80 : x
  2. Step 2: Convert to fraction form
    15,886.83/21,905.94 = 10,853.80/x
  3. Step 3: Cross multiply
    15,886.83x = 21,905.94 × 10,853.80
  4. Step 4: Simplify right side
    15,886.83x = 237,762,677.51
  5. Step 5: Solve for x
    x = 237,762,677.51/15,886.83
  6. Step 6: Final answer
    x = 14,966.02

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.