Home / 12,795.39-17,658.54-7,130.52

Finding the Fourth Proportional to 12,795.39, 17,658.54 and 7,130.52

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Solution

The fourth proportional to 12,795.39, 17,658.54 and 7,130.52 is: 9,840.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,795.39 : 17,658.54 = 7,130.52 : x
  2. Step 2: Convert to fraction form
    12,795.39/17,658.54 = 7,130.52/x
  3. Step 3: Cross multiply
    12,795.39x = 17,658.54 × 7,130.52
  4. Step 4: Simplify right side
    12,795.39x = 125,914,572.64
  5. Step 5: Solve for x
    x = 125,914,572.64/12,795.39
  6. Step 6: Final answer
    x = 9,840.62

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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.