Home / 14,156.30-21,224.28-6,655.64

Finding the Fourth Proportional to 14,156.30, 21,224.28 and 6,655.64

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Solution

The fourth proportional to 14,156.30, 21,224.28 and 6,655.64 is: 9,978.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,156.30 : 21,224.28 = 6,655.64 : x
  2. Step 2: Convert to fraction form
    14,156.30/21,224.28 = 6,655.64/x
  3. Step 3: Cross multiply
    14,156.30x = 21,224.28 × 6,655.64
  4. Step 4: Simplify right side
    14,156.30x = 141,261,166.94
  5. Step 5: Solve for x
    x = 141,261,166.94/14,156.30
  6. Step 6: Final answer
    x = 9,978.68

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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.