Home / 15,734.86-21,715.80-9,018.34

Finding the Fourth Proportional to 15,734.86, 21,715.80 and 9,018.34

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Solution

The fourth proportional to 15,734.86, 21,715.80 and 9,018.34 is: 12,446.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,734.86 : 21,715.80 = 9,018.34 : x
  2. Step 2: Convert to fraction form
    15,734.86/21,715.80 = 9,018.34/x
  3. Step 3: Cross multiply
    15,734.86x = 21,715.80 × 9,018.34
  4. Step 4: Simplify right side
    15,734.86x = 195,840,467.77
  5. Step 5: Solve for x
    x = 195,840,467.77/15,734.86
  6. Step 6: Final answer
    x = 12,446.28

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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.