Home / 7,875.36-11,814.48-3,258.72

Finding the Fourth Proportional to 7,875.36, 11,814.48 and 3,258.72

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Solution

The fourth proportional to 7,875.36, 11,814.48 and 3,258.72 is: 4,888.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.36 : 11,814.48 = 3,258.72 : x
  2. Step 2: Convert to fraction form
    7,875.36/11,814.48 = 3,258.72/x
  3. Step 3: Cross multiply
    7,875.36x = 11,814.48 × 3,258.72
  4. Step 4: Simplify right side
    7,875.36x = 38,500,082.27
  5. Step 5: Solve for x
    x = 38,500,082.27/7,875.36
  6. Step 6: Final answer
    x = 4,888.68

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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.