Home / 7,868.54-10,852.75-5,712.02

Finding the Fourth Proportional to 7,868.54, 10,852.75 and 5,712.02

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Solution

The fourth proportional to 7,868.54, 10,852.75 and 5,712.02 is: 7,878.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.54 : 10,852.75 = 5,712.02 : x
  2. Step 2: Convert to fraction form
    7,868.54/10,852.75 = 5,712.02/x
  3. Step 3: Cross multiply
    7,868.54x = 10,852.75 × 5,712.02
  4. Step 4: Simplify right side
    7,868.54x = 61,991,118.63
  5. Step 5: Solve for x
    x = 61,991,118.63/7,868.54
  6. Step 6: Final answer
    x = 7,878.35

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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.