Home / 13,970.92-19,279.49-7,683.30

Finding the Fourth Proportional to 13,970.92, 19,279.49 and 7,683.30

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Solution

The fourth proportional to 13,970.92, 19,279.49 and 7,683.30 is: 10,602.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970.92 : 19,279.49 = 7,683.30 : x
  2. Step 2: Convert to fraction form
    13,970.92/19,279.49 = 7,683.30/x
  3. Step 3: Cross multiply
    13,970.92x = 19,279.49 × 7,683.30
  4. Step 4: Simplify right side
    13,970.92x = 148,129,994.80
  5. Step 5: Solve for x
    x = 148,129,994.80/13,970.92
  6. Step 6: Final answer
    x = 10,602.74

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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.