Home / 7,781.04-11,646.54-4,078.08

Finding the Fourth Proportional to 7,781.04, 11,646.54 and 4,078.08

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Solution

The fourth proportional to 7,781.04, 11,646.54 and 4,078.08 is: 6,104.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.04 : 11,646.54 = 4,078.08 : x
  2. Step 2: Convert to fraction form
    7,781.04/11,646.54 = 4,078.08/x
  3. Step 3: Cross multiply
    7,781.04x = 11,646.54 × 4,078.08
  4. Step 4: Simplify right side
    7,781.04x = 47,495,521.84
  5. Step 5: Solve for x
    x = 47,495,521.84/7,781.04
  6. Step 6: Final answer
    x = 6,104.01

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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.