Home / 13,312.96-19,969.44-6,290.66

Finding the Fourth Proportional to 13,312.96, 19,969.44 and 6,290.66

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Solution

The fourth proportional to 13,312.96, 19,969.44 and 6,290.66 is: 9,435.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.96 : 19,969.44 = 6,290.66 : x
  2. Step 2: Convert to fraction form
    13,312.96/19,969.44 = 6,290.66/x
  3. Step 3: Cross multiply
    13,312.96x = 19,969.44 × 6,290.66
  4. Step 4: Simplify right side
    13,312.96x = 125,620,957.43
  5. Step 5: Solve for x
    x = 125,620,957.43/13,312.96
  6. Step 6: Final answer
    x = 9,435.99

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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.