Home / 18,728.03-25,838.34-11,457.46

Finding the Fourth Proportional to 18,728.03, 25,838.34 and 11,457.46

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Solution

The fourth proportional to 18,728.03, 25,838.34 and 11,457.46 is: 15,807.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728.03 : 25,838.34 = 11,457.46 : x
  2. Step 2: Convert to fraction form
    18,728.03/25,838.34 = 11,457.46/x
  3. Step 3: Cross multiply
    18,728.03x = 25,838.34 × 11,457.46
  4. Step 4: Simplify right side
    18,728.03x = 296,041,747.02
  5. Step 5: Solve for x
    x = 296,041,747.02/18,728.03
  6. Step 6: Final answer
    x = 15,807.42

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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.