Home / 15,112.34-20,838.78-9,445.04

Finding the Fourth Proportional to 15,112.34, 20,838.78 and 9,445.04

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Solution

The fourth proportional to 15,112.34, 20,838.78 and 9,445.04 is: 13,024.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,112.34 : 20,838.78 = 9,445.04 : x
  2. Step 2: Convert to fraction form
    15,112.34/20,838.78 = 9,445.04/x
  3. Step 3: Cross multiply
    15,112.34x = 20,838.78 × 9,445.04
  4. Step 4: Simplify right side
    15,112.34x = 196,823,110.65
  5. Step 5: Solve for x
    x = 196,823,110.65/15,112.34
  6. Step 6: Final answer
    x = 13,024.00

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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.