Home / 13,989.34-19,306.38-7,702.84

Finding the Fourth Proportional to 13,989.34, 19,306.38 and 7,702.84

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Solution

The fourth proportional to 13,989.34, 19,306.38 and 7,702.84 is: 10,630.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989.34 : 19,306.38 = 7,702.84 : x
  2. Step 2: Convert to fraction form
    13,989.34/19,306.38 = 7,702.84/x
  3. Step 3: Cross multiply
    13,989.34x = 19,306.38 × 7,702.84
  4. Step 4: Simplify right side
    13,989.34x = 148,713,956.12
  5. Step 5: Solve for x
    x = 148,713,956.12/13,989.34
  6. Step 6: Final answer
    x = 10,630.52

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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.