Home / 11,386.68-15,717.12-6,672.48

Finding the Fourth Proportional to 11,386.68, 15,717.12 and 6,672.48

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Solution

The fourth proportional to 11,386.68, 15,717.12 and 6,672.48 is: 9,210.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,386.68 : 15,717.12 = 6,672.48 : x
  2. Step 2: Convert to fraction form
    11,386.68/15,717.12 = 6,672.48/x
  3. Step 3: Cross multiply
    11,386.68x = 15,717.12 × 6,672.48
  4. Step 4: Simplify right side
    11,386.68x = 104,872,168.86
  5. Step 5: Solve for x
    x = 104,872,168.86/11,386.68
  6. Step 6: Final answer
    x = 9,210.07

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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.