Home / 7,772.08-10,717.20-5,779.36

Finding the Fourth Proportional to 7,772.08, 10,717.20 and 5,779.36

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Solution

The fourth proportional to 7,772.08, 10,717.20 and 5,779.36 is: 7,969.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.08 : 10,717.20 = 5,779.36 : x
  2. Step 2: Convert to fraction form
    7,772.08/10,717.20 = 5,779.36/x
  3. Step 3: Cross multiply
    7,772.08x = 10,717.20 × 5,779.36
  4. Step 4: Simplify right side
    7,772.08x = 61,938,556.99
  5. Step 5: Solve for x
    x = 61,938,556.99/7,772.08
  6. Step 6: Final answer
    x = 7,969.37

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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.