Home / 7,190.94-9,925.36-6,443.62

Finding the Fourth Proportional to 7,190.94, 9,925.36 and 6,443.62

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Solution

The fourth proportional to 7,190.94, 9,925.36 and 6,443.62 is: 8,893.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.94 : 9,925.36 = 6,443.62 : x
  2. Step 2: Convert to fraction form
    7,190.94/9,925.36 = 6,443.62/x
  3. Step 3: Cross multiply
    7,190.94x = 9,925.36 × 6,443.62
  4. Step 4: Simplify right side
    7,190.94x = 63,955,225.40
  5. Step 5: Solve for x
    x = 63,955,225.40/7,190.94
  6. Step 6: Final answer
    x = 8,893.86

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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.