Home / 10,621.38-15,940.26-5,695.14

Finding the Fourth Proportional to 10,621.38, 15,940.26 and 5,695.14

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Solution

The fourth proportional to 10,621.38, 15,940.26 and 5,695.14 is: 8,547.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.38 : 15,940.26 = 5,695.14 : x
  2. Step 2: Convert to fraction form
    10,621.38/15,940.26 = 5,695.14/x
  3. Step 3: Cross multiply
    10,621.38x = 15,940.26 × 5,695.14
  4. Step 4: Simplify right side
    10,621.38x = 90,782,012.34
  5. Step 5: Solve for x
    x = 90,782,012.34/10,621.38
  6. Step 6: Final answer
    x = 8,547.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.