Home / 13,989.01-19,304.81-7,701.39

Finding the Fourth Proportional to 13,989.01, 19,304.81 and 7,701.39

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Solution

The fourth proportional to 13,989.01, 19,304.81 and 7,701.39 is: 10,627.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989.01 : 19,304.81 = 7,701.39 : x
  2. Step 2: Convert to fraction form
    13,989.01/19,304.81 = 7,701.39/x
  3. Step 3: Cross multiply
    13,989.01x = 19,304.81 × 7,701.39
  4. Step 4: Simplify right side
    13,989.01x = 148,673,774.16
  5. Step 5: Solve for x
    x = 148,673,774.16/13,989.01
  6. Step 6: Final answer
    x = 10,627.90

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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.