Home / 14,005.45-21,007.77-4,645.90

Finding the Fourth Proportional to 14,005.45, 21,007.77 and 4,645.90

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Solution

The fourth proportional to 14,005.45, 21,007.77 and 4,645.90 is: 6,968.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,005.45 : 21,007.77 = 4,645.90 : x
  2. Step 2: Convert to fraction form
    14,005.45/21,007.77 = 4,645.90/x
  3. Step 3: Cross multiply
    14,005.45x = 21,007.77 × 4,645.90
  4. Step 4: Simplify right side
    14,005.45x = 97,599,998.64
  5. Step 5: Solve for x
    x = 97,599,998.64/14,005.45
  6. Step 6: Final answer
    x = 6,968.72

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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.