Home / 15,268.32-21,072.15-9,300.86

Finding the Fourth Proportional to 15,268.32, 21,072.15 and 9,300.86

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Solution

The fourth proportional to 15,268.32, 21,072.15 and 9,300.86 is: 12,836.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,268.32 : 21,072.15 = 9,300.86 : x
  2. Step 2: Convert to fraction form
    15,268.32/21,072.15 = 9,300.86/x
  3. Step 3: Cross multiply
    15,268.32x = 21,072.15 × 9,300.86
  4. Step 4: Simplify right side
    15,268.32x = 195,989,117.05
  5. Step 5: Solve for x
    x = 195,989,117.05/15,268.32
  6. Step 6: Final answer
    x = 12,836.32

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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.