Home / 7,503.56-11,258.40-3,120.20

Finding the Fourth Proportional to 7,503.56, 11,258.40 and 3,120.20

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Solution

The fourth proportional to 7,503.56, 11,258.40 and 3,120.20 is: 4,681.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,503.56 : 11,258.40 = 3,120.20 : x
  2. Step 2: Convert to fraction form
    7,503.56/11,258.40 = 3,120.20/x
  3. Step 3: Cross multiply
    7,503.56x = 11,258.40 × 3,120.20
  4. Step 4: Simplify right side
    7,503.56x = 35,128,459.68
  5. Step 5: Solve for x
    x = 35,128,459.68/7,503.56
  6. Step 6: Final answer
    x = 4,681.57

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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.