Home / 15,777.81-21,765.57-10,323.68

Finding the Fourth Proportional to 15,777.81, 21,765.57 and 10,323.68

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Solution

The fourth proportional to 15,777.81, 21,765.57 and 10,323.68 is: 14,241.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,777.81 : 21,765.57 = 10,323.68 : x
  2. Step 2: Convert to fraction form
    15,777.81/21,765.57 = 10,323.68/x
  3. Step 3: Cross multiply
    15,777.81x = 21,765.57 × 10,323.68
  4. Step 4: Simplify right side
    15,777.81x = 224,700,670.87
  5. Step 5: Solve for x
    x = 224,700,670.87/15,777.81
  6. Step 6: Final answer
    x = 14,241.56

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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.