Home / 15,890.23-21,928.42-9,176.44

Finding the Fourth Proportional to 15,890.23, 21,928.42 and 9,176.44

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Solution

The fourth proportional to 15,890.23, 21,928.42 and 9,176.44 is: 12,663.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,890.23 : 21,928.42 = 9,176.44 : x
  2. Step 2: Convert to fraction form
    15,890.23/21,928.42 = 9,176.44/x
  3. Step 3: Cross multiply
    15,890.23x = 21,928.42 × 9,176.44
  4. Step 4: Simplify right side
    15,890.23x = 201,224,828.19
  5. Step 5: Solve for x
    x = 201,224,828.19/15,890.23
  6. Step 6: Final answer
    x = 12,663.43

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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.