Home / 10,981.29-15,153.90-6,136.05

Finding the Fourth Proportional to 10,981.29, 15,153.90 and 6,136.05

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Solution

The fourth proportional to 10,981.29, 15,153.90 and 6,136.05 is: 8,467.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.29 : 15,153.90 = 6,136.05 : x
  2. Step 2: Convert to fraction form
    10,981.29/15,153.90 = 6,136.05/x
  3. Step 3: Cross multiply
    10,981.29x = 15,153.90 × 6,136.05
  4. Step 4: Simplify right side
    10,981.29x = 92,985,088.10
  5. Step 5: Solve for x
    x = 92,985,088.10/10,981.29
  6. Step 6: Final answer
    x = 8,467.59

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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.