Home / 7,196.40-9,931.68-4,679.76

Finding the Fourth Proportional to 7,196.40, 9,931.68 and 4,679.76

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Solution

The fourth proportional to 7,196.40, 9,931.68 and 4,679.76 is: 6,458.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,196.40 : 9,931.68 = 4,679.76 : x
  2. Step 2: Convert to fraction form
    7,196.40/9,931.68 = 4,679.76/x
  3. Step 3: Cross multiply
    7,196.40x = 9,931.68 × 4,679.76
  4. Step 4: Simplify right side
    7,196.40x = 46,477,878.80
  5. Step 5: Solve for x
    x = 46,477,878.80/7,196.40
  6. Step 6: Final answer
    x = 6,458.49

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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.