Home / 14,728.48-20,343-10,743.28

Finding the Fourth Proportional to 14,728.48, 20,343 and 10,743.28

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Solution

The fourth proportional to 14,728.48, 20,343 and 10,743.28 is: 14,838.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,728.48 : 20,343 = 10,743.28 : x
  2. Step 2: Convert to fraction form
    14,728.48/20,343 = 10,743.28/x
  3. Step 3: Cross multiply
    14,728.48x = 20,343 × 10,743.28
  4. Step 4: Simplify right side
    14,728.48x = 218,550,545.04
  5. Step 5: Solve for x
    x = 218,550,545.04/14,728.48
  6. Step 6: Final answer
    x = 14,838.64

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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.