Home / 7,948.80-11,913.60-4,051.20

Finding the Fourth Proportional to 7,948.80, 11,913.60 and 4,051.20

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Solution

The fourth proportional to 7,948.80, 11,913.60 and 4,051.20 is: 6,071.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,948.80 : 11,913.60 = 4,051.20 : x
  2. Step 2: Convert to fraction form
    7,948.80/11,913.60 = 4,051.20/x
  3. Step 3: Cross multiply
    7,948.80x = 11,913.60 × 4,051.20
  4. Step 4: Simplify right side
    7,948.80x = 48,264,376.32
  5. Step 5: Solve for x
    x = 48,264,376.32/7,948.80
  6. Step 6: Final answer
    x = 6,071.91

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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.