Home / 13,988.84-19,305.69-7,702.34

Finding the Fourth Proportional to 13,988.84, 19,305.69 and 7,702.34

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Solution

The fourth proportional to 13,988.84, 19,305.69 and 7,702.34 is: 10,629.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.84 : 19,305.69 = 7,702.34 : x
  2. Step 2: Convert to fraction form
    13,988.84/19,305.69 = 7,702.34/x
  3. Step 3: Cross multiply
    13,988.84x = 19,305.69 × 7,702.34
  4. Step 4: Simplify right side
    13,988.84x = 148,698,988.31
  5. Step 5: Solve for x
    x = 148,698,988.31/13,988.84
  6. Step 6: Final answer
    x = 10,629.83

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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.