Home / 14,976.78-20,664.36-9,670.68

Finding the Fourth Proportional to 14,976.78, 20,664.36 and 9,670.68

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Solution

The fourth proportional to 14,976.78, 20,664.36 and 9,670.68 is: 13,343.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,976.78 : 20,664.36 = 9,670.68 : x
  2. Step 2: Convert to fraction form
    14,976.78/20,664.36 = 9,670.68/x
  3. Step 3: Cross multiply
    14,976.78x = 20,664.36 × 9,670.68
  4. Step 4: Simplify right side
    14,976.78x = 199,838,412.96
  5. Step 5: Solve for x
    x = 199,838,412.96/14,976.78
  6. Step 6: Final answer
    x = 13,343.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.