Home / 15,207-20,983.32-8,492.34

Finding the Fourth Proportional to 15,207, 20,983.32 and 8,492.34

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Solution

The fourth proportional to 15,207, 20,983.32 and 8,492.34 is: 11,718.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,207 : 20,983.32 = 8,492.34 : x
  2. Step 2: Convert to fraction form
    15,207/20,983.32 = 8,492.34/x
  3. Step 3: Cross multiply
    15,207x = 20,983.32 × 8,492.34
  4. Step 4: Simplify right side
    15,207x = 178,197,487.77
  5. Step 5: Solve for x
    x = 178,197,487.77/15,207
  6. Step 6: Final answer
    x = 11,718.12

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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.