Home / 7,929.36-11,889.58-3,248.08

Finding the Fourth Proportional to 7,929.36, 11,889.58 and 3,248.08

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Solution

The fourth proportional to 7,929.36, 11,889.58 and 3,248.08 is: 4,870.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.36 : 11,889.58 = 3,248.08 : x
  2. Step 2: Convert to fraction form
    7,929.36/11,889.58 = 3,248.08/x
  3. Step 3: Cross multiply
    7,929.36x = 11,889.58 × 3,248.08
  4. Step 4: Simplify right side
    7,929.36x = 38,618,307.01
  5. Step 5: Solve for x
    x = 38,618,307.01/7,929.36
  6. Step 6: Final answer
    x = 4,870.29

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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.