Home / 13,989.36-19,304.88-7,701.68

Finding the Fourth Proportional to 13,989.36, 19,304.88 and 7,701.68

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Solution

The fourth proportional to 13,989.36, 19,304.88 and 7,701.68 is: 10,628.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989.36 : 19,304.88 = 7,701.68 : x
  2. Step 2: Convert to fraction form
    13,989.36/19,304.88 = 7,701.68/x
  3. Step 3: Cross multiply
    13,989.36x = 19,304.88 × 7,701.68
  4. Step 4: Simplify right side
    13,989.36x = 148,680,008.20
  5. Step 5: Solve for x
    x = 148,680,008.20/13,989.36
  6. Step 6: Final answer
    x = 10,628.08

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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.