Home / 10,322.40-15,484.68-4,479.60

Finding the Fourth Proportional to 10,322.40, 15,484.68 and 4,479.60

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Solution

The fourth proportional to 10,322.40, 15,484.68 and 4,479.60 is: 6,719.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,322.40 : 15,484.68 = 4,479.60 : x
  2. Step 2: Convert to fraction form
    10,322.40/15,484.68 = 4,479.60/x
  3. Step 3: Cross multiply
    10,322.40x = 15,484.68 × 4,479.60
  4. Step 4: Simplify right side
    10,322.40x = 69,365,172.53
  5. Step 5: Solve for x
    x = 69,365,172.53/10,322.40
  6. Step 6: Final answer
    x = 6,719.87

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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.