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Finding the Fourth Proportional to 6,368.90, 9,488.78 and 6,055.21

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Solution

The fourth proportional to 6,368.90, 9,488.78 and 6,055.21 is: 9,021.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.90 : 9,488.78 = 6,055.21 : x
  2. Step 2: Convert to fraction form
    6,368.90/9,488.78 = 6,055.21/x
  3. Step 3: Cross multiply
    6,368.90x = 9,488.78 × 6,055.21
  4. Step 4: Simplify right side
    6,368.90x = 57,456,506.46
  5. Step 5: Solve for x
    x = 57,456,506.46/6,368.90
  6. Step 6: Final answer
    x = 9,021.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.