Home / 9,878.18-14,828.85-7,799.58

Finding the Fourth Proportional to 9,878.18, 14,828.85 and 7,799.58

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Solution

The fourth proportional to 9,878.18, 14,828.85 and 7,799.58 is: 11,708.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,878.18 : 14,828.85 = 7,799.58 : x
  2. Step 2: Convert to fraction form
    9,878.18/14,828.85 = 7,799.58/x
  3. Step 3: Cross multiply
    9,878.18x = 14,828.85 × 7,799.58
  4. Step 4: Simplify right side
    9,878.18x = 115,658,801.88
  5. Step 5: Solve for x
    x = 115,658,801.88/9,878.18
  6. Step 6: Final answer
    x = 11,708.51

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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.