Home / 15,784.37-21,776.85-10,416.90

Finding the Fourth Proportional to 15,784.37, 21,776.85 and 10,416.90

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Solution

The fourth proportional to 15,784.37, 21,776.85 and 10,416.90 is: 14,371.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,784.37 : 21,776.85 = 10,416.90 : x
  2. Step 2: Convert to fraction form
    15,784.37/21,776.85 = 10,416.90/x
  3. Step 3: Cross multiply
    15,784.37x = 21,776.85 × 10,416.90
  4. Step 4: Simplify right side
    15,784.37x = 226,847,350.43
  5. Step 5: Solve for x
    x = 226,847,350.43/15,784.37
  6. Step 6: Final answer
    x = 14,371.65

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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.