Home / 15,358.32-21,194.21-8,643.93

Finding the Fourth Proportional to 15,358.32, 21,194.21 and 8,643.93

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Solution

The fourth proportional to 15,358.32, 21,194.21 and 8,643.93 is: 11,928.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,358.32 : 21,194.21 = 8,643.93 : x
  2. Step 2: Convert to fraction form
    15,358.32/21,194.21 = 8,643.93/x
  3. Step 3: Cross multiply
    15,358.32x = 21,194.21 × 8,643.93
  4. Step 4: Simplify right side
    15,358.32x = 183,201,224.43
  5. Step 5: Solve for x
    x = 183,201,224.43/15,358.32
  6. Step 6: Final answer
    x = 11,928.47

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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.