Home / 15,583.39-21,487.68-9,910.96

Finding the Fourth Proportional to 15,583.39, 21,487.68 and 9,910.96

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Solution

The fourth proportional to 15,583.39, 21,487.68 and 9,910.96 is: 13,666.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,583.39 : 21,487.68 = 9,910.96 : x
  2. Step 2: Convert to fraction form
    15,583.39/21,487.68 = 9,910.96/x
  3. Step 3: Cross multiply
    15,583.39x = 21,487.68 × 9,910.96
  4. Step 4: Simplify right side
    15,583.39x = 212,963,483.25
  5. Step 5: Solve for x
    x = 212,963,483.25/15,583.39
  6. Step 6: Final answer
    x = 13,666.06

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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.