Home / 7,954.23-11,931.22-2,688.11

Finding the Fourth Proportional to 7,954.23, 11,931.22 and 2,688.11

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Solution

The fourth proportional to 7,954.23, 11,931.22 and 2,688.11 is: 4,032.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,954.23 : 11,931.22 = 2,688.11 : x
  2. Step 2: Convert to fraction form
    7,954.23/11,931.22 = 2,688.11/x
  3. Step 3: Cross multiply
    7,954.23x = 11,931.22 × 2,688.11
  4. Step 4: Simplify right side
    7,954.23x = 32,072,461.36
  5. Step 5: Solve for x
    x = 32,072,461.36/7,954.23
  6. Step 6: Final answer
    x = 4,032.13

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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.