Home / 15,367.43-21,207.09-8,653.05

Finding the Fourth Proportional to 15,367.43, 21,207.09 and 8,653.05

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Solution

The fourth proportional to 15,367.43, 21,207.09 and 8,653.05 is: 11,941.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,367.43 : 21,207.09 = 8,653.05 : x
  2. Step 2: Convert to fraction form
    15,367.43/21,207.09 = 8,653.05/x
  3. Step 3: Cross multiply
    15,367.43x = 21,207.09 × 8,653.05
  4. Step 4: Simplify right side
    15,367.43x = 183,506,010.12
  5. Step 5: Solve for x
    x = 183,506,010.12/15,367.43
  6. Step 6: Final answer
    x = 11,941.23

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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.