Home / 8,957.15-12,357.59-5,419.07

Finding the Fourth Proportional to 8,957.15, 12,357.59 and 5,419.07

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Solution

The fourth proportional to 8,957.15, 12,357.59 and 5,419.07 is: 7,476.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.15 : 12,357.59 = 5,419.07 : x
  2. Step 2: Convert to fraction form
    8,957.15/12,357.59 = 5,419.07/x
  3. Step 3: Cross multiply
    8,957.15x = 12,357.59 × 5,419.07
  4. Step 4: Simplify right side
    8,957.15x = 66,966,556.36
  5. Step 5: Solve for x
    x = 66,966,556.36/8,957.15
  6. Step 6: Final answer
    x = 7,476.33

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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.