Home / 7,146.57-9,858.65-4,876.21

Finding the Fourth Proportional to 7,146.57, 9,858.65 and 4,876.21

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Solution

The fourth proportional to 7,146.57, 9,858.65 and 4,876.21 is: 6,726.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.57 : 9,858.65 = 4,876.21 : x
  2. Step 2: Convert to fraction form
    7,146.57/9,858.65 = 4,876.21/x
  3. Step 3: Cross multiply
    7,146.57x = 9,858.65 × 4,876.21
  4. Step 4: Simplify right side
    7,146.57x = 48,072,835.66
  5. Step 5: Solve for x
    x = 48,072,835.66/7,146.57
  6. Step 6: Final answer
    x = 6,726.70

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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.