Home / 15,583.19-21,505.37-8,869.37

Finding the Fourth Proportional to 15,583.19, 21,505.37 and 8,869.37

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Solution

The fourth proportional to 15,583.19, 21,505.37 and 8,869.37 is: 12,240.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,583.19 : 21,505.37 = 8,869.37 : x
  2. Step 2: Convert to fraction form
    15,583.19/21,505.37 = 8,869.37/x
  3. Step 3: Cross multiply
    15,583.19x = 21,505.37 × 8,869.37
  4. Step 4: Simplify right side
    15,583.19x = 190,738,931.64
  5. Step 5: Solve for x
    x = 190,738,931.64/15,583.19
  6. Step 6: Final answer
    x = 12,240.05

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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.