Home / 13,970.83-19,279.36-7,683.21

Finding the Fourth Proportional to 13,970.83, 19,279.36 and 7,683.21

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Solution

The fourth proportional to 13,970.83, 19,279.36 and 7,683.21 is: 10,602.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970.83 : 19,279.36 = 7,683.21 : x
  2. Step 2: Convert to fraction form
    13,970.83/19,279.36 = 7,683.21/x
  3. Step 3: Cross multiply
    13,970.83x = 19,279.36 × 7,683.21
  4. Step 4: Simplify right side
    13,970.83x = 148,127,371.55
  5. Step 5: Solve for x
    x = 148,127,371.55/13,970.83
  6. Step 6: Final answer
    x = 10,602.62

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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.