Home / 15,774.63-21,765.96-9,487.41

Finding the Fourth Proportional to 15,774.63, 21,765.96 and 9,487.41

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Solution

The fourth proportional to 15,774.63, 21,765.96 and 9,487.41 is: 13,090.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,774.63 : 21,765.96 = 9,487.41 : x
  2. Step 2: Convert to fraction form
    15,774.63/21,765.96 = 9,487.41/x
  3. Step 3: Cross multiply
    15,774.63x = 21,765.96 × 9,487.41
  4. Step 4: Simplify right side
    15,774.63x = 206,502,586.56
  5. Step 5: Solve for x
    x = 206,502,586.56/15,774.63
  6. Step 6: Final answer
    x = 13,090.80

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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.