Home / 13,210.88-19,790.80-7,349.76

Finding the Fourth Proportional to 13,210.88, 19,790.80 and 7,349.76

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Solution

The fourth proportional to 13,210.88, 19,790.80 and 7,349.76 is: 11,010.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.88 : 19,790.80 = 7,349.76 : x
  2. Step 2: Convert to fraction form
    13,210.88/19,790.80 = 7,349.76/x
  3. Step 3: Cross multiply
    13,210.88x = 19,790.80 × 7,349.76
  4. Step 4: Simplify right side
    13,210.88x = 145,457,630.21
  5. Step 5: Solve for x
    x = 145,457,630.21/13,210.88
  6. Step 6: Final answer
    x = 11,010.44

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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.