Home / 13,210.74-19,840.80-11,630.03

Finding the Fourth Proportional to 13,210.74, 19,840.80 and 11,630.03

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Solution

The fourth proportional to 13,210.74, 19,840.80 and 11,630.03 is: 17,466.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.74 : 19,840.80 = 11,630.03 : x
  2. Step 2: Convert to fraction form
    13,210.74/19,840.80 = 11,630.03/x
  3. Step 3: Cross multiply
    13,210.74x = 19,840.80 × 11,630.03
  4. Step 4: Simplify right side
    13,210.74x = 230,749,000.02
  5. Step 5: Solve for x
    x = 230,749,000.02/13,210.74
  6. Step 6: Final answer
    x = 17,466.77

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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.