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Finding the Fourth Proportional to 12,509.79, 17,263.37 and 6,844.47

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Solution

The fourth proportional to 12,509.79, 17,263.37 and 6,844.47 is: 9,445.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,509.79 : 17,263.37 = 6,844.47 : x
  2. Step 2: Convert to fraction form
    12,509.79/17,263.37 = 6,844.47/x
  3. Step 3: Cross multiply
    12,509.79x = 17,263.37 × 6,844.47
  4. Step 4: Simplify right side
    12,509.79x = 118,158,583.84
  5. Step 5: Solve for x
    x = 118,158,583.84/12,509.79
  6. Step 6: Final answer
    x = 9,445.29

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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.