Home / 15,021.63-20,730.51-9,359.73

Finding the Fourth Proportional to 15,021.63, 20,730.51 and 9,359.73

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Solution

The fourth proportional to 15,021.63, 20,730.51 and 9,359.73 is: 12,916.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,021.63 : 20,730.51 = 9,359.73 : x
  2. Step 2: Convert to fraction form
    15,021.63/20,730.51 = 9,359.73/x
  3. Step 3: Cross multiply
    15,021.63x = 20,730.51 × 9,359.73
  4. Step 4: Simplify right side
    15,021.63x = 194,031,976.36
  5. Step 5: Solve for x
    x = 194,031,976.36/15,021.63
  6. Step 6: Final answer
    x = 12,916.84

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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.