Home / 13,971.02-19,279.62-7,683.39

Finding the Fourth Proportional to 13,971.02, 19,279.62 and 7,683.39

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Solution

The fourth proportional to 13,971.02, 19,279.62 and 7,683.39 is: 10,602.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.02 : 19,279.62 = 7,683.39 : x
  2. Step 2: Convert to fraction form
    13,971.02/19,279.62 = 7,683.39/x
  3. Step 3: Cross multiply
    13,971.02x = 19,279.62 × 7,683.39
  4. Step 4: Simplify right side
    13,971.02x = 148,132,839.51
  5. Step 5: Solve for x
    x = 148,132,839.51/13,971.02
  6. Step 6: Final answer
    x = 10,602.87

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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.