Home / 9,316.28-13,931.22-7,212.44

Finding the Fourth Proportional to 9,316.28, 13,931.22 and 7,212.44

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Solution

The fourth proportional to 9,316.28, 13,931.22 and 7,212.44 is: 10,785.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,316.28 : 13,931.22 = 7,212.44 : x
  2. Step 2: Convert to fraction form
    9,316.28/13,931.22 = 7,212.44/x
  3. Step 3: Cross multiply
    9,316.28x = 13,931.22 × 7,212.44
  4. Step 4: Simplify right side
    9,316.28x = 100,478,088.38
  5. Step 5: Solve for x
    x = 100,478,088.38/9,316.28
  6. Step 6: Final answer
    x = 10,785.22

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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.