Home / 12,970.06-17,898.39-7,934.35

Finding the Fourth Proportional to 12,970.06, 17,898.39 and 7,934.35

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Solution

The fourth proportional to 12,970.06, 17,898.39 and 7,934.35 is: 10,949.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,970.06 : 17,898.39 = 7,934.35 : x
  2. Step 2: Convert to fraction form
    12,970.06/17,898.39 = 7,934.35/x
  3. Step 3: Cross multiply
    12,970.06x = 17,898.39 × 7,934.35
  4. Step 4: Simplify right side
    12,970.06x = 142,012,090.70
  5. Step 5: Solve for x
    x = 142,012,090.70/12,970.06
  6. Step 6: Final answer
    x = 10,949.22

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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.