Home / 15,765.93-21,757.68-9,051.84

Finding the Fourth Proportional to 15,765.93, 21,757.68 and 9,051.84

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Solution

The fourth proportional to 15,765.93, 21,757.68 and 9,051.84 is: 12,491.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,765.93 : 21,757.68 = 9,051.84 : x
  2. Step 2: Convert to fraction form
    15,765.93/21,757.68 = 9,051.84/x
  3. Step 3: Cross multiply
    15,765.93x = 21,757.68 × 9,051.84
  4. Step 4: Simplify right side
    15,765.93x = 196,947,038.13
  5. Step 5: Solve for x
    x = 196,947,038.13/15,765.93
  6. Step 6: Final answer
    x = 12,491.94

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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.