Home / 19,761.98-29,639.86-6,435.45

Finding the Fourth Proportional to 19,761.98, 29,639.86 and 6,435.45

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Solution

The fourth proportional to 19,761.98, 29,639.86 and 6,435.45 is: 9,652.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,761.98 : 29,639.86 = 6,435.45 : x
  2. Step 2: Convert to fraction form
    19,761.98/29,639.86 = 6,435.45/x
  3. Step 3: Cross multiply
    19,761.98x = 29,639.86 × 6,435.45
  4. Step 4: Simplify right side
    19,761.98x = 190,745,820.95
  5. Step 5: Solve for x
    x = 190,745,820.95/19,761.98
  6. Step 6: Final answer
    x = 9,652.16

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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.