Home / 12,570-17,346.60-6,981.52

Finding the Fourth Proportional to 12,570, 17,346.60 and 6,981.52

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Solution

The fourth proportional to 12,570, 17,346.60 and 6,981.52 is: 9,634.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570 : 17,346.60 = 6,981.52 : x
  2. Step 2: Convert to fraction form
    12,570/17,346.60 = 6,981.52/x
  3. Step 3: Cross multiply
    12,570x = 17,346.60 × 6,981.52
  4. Step 4: Simplify right side
    12,570x = 121,105,634.83
  5. Step 5: Solve for x
    x = 121,105,634.83/12,570
  6. Step 6: Final answer
    x = 9,634.50

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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.