Home / 15,362.57-21,200.75-8,648.43

Finding the Fourth Proportional to 15,362.57, 21,200.75 and 8,648.43

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Solution

The fourth proportional to 15,362.57, 21,200.75 and 8,648.43 is: 11,935.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.57 : 21,200.75 = 8,648.43 : x
  2. Step 2: Convert to fraction form
    15,362.57/21,200.75 = 8,648.43/x
  3. Step 3: Cross multiply
    15,362.57x = 21,200.75 × 8,648.43
  4. Step 4: Simplify right side
    15,362.57x = 183,353,159.08
  5. Step 5: Solve for x
    x = 183,353,159.08/15,362.57
  6. Step 6: Final answer
    x = 11,935.06

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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.