Home / 14,128.55-19,497.63-7,755.74

Finding the Fourth Proportional to 14,128.55, 19,497.63 and 7,755.74

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Solution

The fourth proportional to 14,128.55, 19,497.63 and 7,755.74 is: 10,703.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,128.55 : 19,497.63 = 7,755.74 : x
  2. Step 2: Convert to fraction form
    14,128.55/19,497.63 = 7,755.74/x
  3. Step 3: Cross multiply
    14,128.55x = 19,497.63 × 7,755.74
  4. Step 4: Simplify right side
    14,128.55x = 151,218,451.41
  5. Step 5: Solve for x
    x = 151,218,451.41/14,128.55
  6. Step 6: Final answer
    x = 10,703.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.