Home / 15,458.08-21,330.74-8,744.32

Finding the Fourth Proportional to 15,458.08, 21,330.74 and 8,744.32

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Solution

The fourth proportional to 15,458.08, 21,330.74 and 8,744.32 is: 12,066.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,458.08 : 21,330.74 = 8,744.32 : x
  2. Step 2: Convert to fraction form
    15,458.08/21,330.74 = 8,744.32/x
  3. Step 3: Cross multiply
    15,458.08x = 21,330.74 × 8,744.32
  4. Step 4: Simplify right side
    15,458.08x = 186,522,816.40
  5. Step 5: Solve for x
    x = 186,522,816.40/15,458.08
  6. Step 6: Final answer
    x = 12,066.36

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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.