Home / 15,538.23-21,435.93-10,500.61

Finding the Fourth Proportional to 15,538.23, 21,435.93 and 10,500.61

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Solution

The fourth proportional to 15,538.23, 21,435.93 and 10,500.61 is: 14,486.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,538.23 : 21,435.93 = 10,500.61 : x
  2. Step 2: Convert to fraction form
    15,538.23/21,435.93 = 10,500.61/x
  3. Step 3: Cross multiply
    15,538.23x = 21,435.93 × 10,500.61
  4. Step 4: Simplify right side
    15,538.23x = 225,090,287.33
  5. Step 5: Solve for x
    x = 225,090,287.33/15,538.23
  6. Step 6: Final answer
    x = 14,486.22

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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.