Home / 9,928.20-14,897.70-4,085.40

Finding the Fourth Proportional to 9,928.20, 14,897.70 and 4,085.40

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Solution

The fourth proportional to 9,928.20, 14,897.70 and 4,085.40 is: 6,130.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,928.20 : 14,897.70 = 4,085.40 : x
  2. Step 2: Convert to fraction form
    9,928.20/14,897.70 = 4,085.40/x
  3. Step 3: Cross multiply
    9,928.20x = 14,897.70 × 4,085.40
  4. Step 4: Simplify right side
    9,928.20x = 60,863,063.58
  5. Step 5: Solve for x
    x = 60,863,063.58/9,928.20
  6. Step 6: Final answer
    x = 6,130.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.