Home / 15,728.92-21,683.10-10,998.52

Finding the Fourth Proportional to 15,728.92, 21,683.10 and 10,998.52

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Solution

The fourth proportional to 15,728.92, 21,683.10 and 10,998.52 is: 15,162.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,728.92 : 21,683.10 = 10,998.52 : x
  2. Step 2: Convert to fraction form
    15,728.92/21,683.10 = 10,998.52/x
  3. Step 3: Cross multiply
    15,728.92x = 21,683.10 × 10,998.52
  4. Step 4: Simplify right side
    15,728.92x = 238,482,009.01
  5. Step 5: Solve for x
    x = 238,482,009.01/15,728.92
  6. Step 6: Final answer
    x = 15,162.01

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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.