Home / 14,129.42-21,196.47-4,770.32

Finding the Fourth Proportional to 14,129.42, 21,196.47 and 4,770.32

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Solution

The fourth proportional to 14,129.42, 21,196.47 and 4,770.32 is: 7,156.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.42 : 21,196.47 = 4,770.32 : x
  2. Step 2: Convert to fraction form
    14,129.42/21,196.47 = 4,770.32/x
  3. Step 3: Cross multiply
    14,129.42x = 21,196.47 × 4,770.32
  4. Step 4: Simplify right side
    14,129.42x = 101,113,944.77
  5. Step 5: Solve for x
    x = 101,113,944.77/14,129.42
  6. Step 6: Final answer
    x = 7,156.27

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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.