Home / 14,156.64-21,238.08-5,391.60

Finding the Fourth Proportional to 14,156.64, 21,238.08 and 5,391.60

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Solution

The fourth proportional to 14,156.64, 21,238.08 and 5,391.60 is: 8,088.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,156.64 : 21,238.08 = 5,391.60 : x
  2. Step 2: Convert to fraction form
    14,156.64/21,238.08 = 5,391.60/x
  3. Step 3: Cross multiply
    14,156.64x = 21,238.08 × 5,391.60
  4. Step 4: Simplify right side
    14,156.64x = 114,507,232.13
  5. Step 5: Solve for x
    x = 114,507,232.13/14,156.64
  6. Step 6: Final answer
    x = 8,088.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.