Home / 14,130.55-21,216.63-7,902.77

Finding the Fourth Proportional to 14,130.55, 21,216.63 and 7,902.77

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Solution

The fourth proportional to 14,130.55, 21,216.63 and 7,902.77 is: 11,865.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,130.55 : 21,216.63 = 7,902.77 : x
  2. Step 2: Convert to fraction form
    14,130.55/21,216.63 = 7,902.77/x
  3. Step 3: Cross multiply
    14,130.55x = 21,216.63 × 7,902.77
  4. Step 4: Simplify right side
    14,130.55x = 167,670,070.62
  5. Step 5: Solve for x
    x = 167,670,070.62/14,130.55
  6. Step 6: Final answer
    x = 11,865.78

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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.