Home / 13,260.56-19,898.04-9,971.60

Finding the Fourth Proportional to 13,260.56, 19,898.04 and 9,971.60

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Solution

The fourth proportional to 13,260.56, 19,898.04 and 9,971.60 is: 14,962.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.56 : 19,898.04 = 9,971.60 : x
  2. Step 2: Convert to fraction form
    13,260.56/19,898.04 = 9,971.60/x
  3. Step 3: Cross multiply
    13,260.56x = 19,898.04 × 9,971.60
  4. Step 4: Simplify right side
    13,260.56x = 198,415,295.66
  5. Step 5: Solve for x
    x = 198,415,295.66/13,260.56
  6. Step 6: Final answer
    x = 14,962.81

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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.