Home / 11,970.19-17,928.55-8,675.72

Finding the Fourth Proportional to 11,970.19, 17,928.55 and 8,675.72

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Solution

The fourth proportional to 11,970.19, 17,928.55 and 8,675.72 is: 12,994.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,970.19 : 17,928.55 = 8,675.72 : x
  2. Step 2: Convert to fraction form
    11,970.19/17,928.55 = 8,675.72/x
  3. Step 3: Cross multiply
    11,970.19x = 17,928.55 × 8,675.72
  4. Step 4: Simplify right side
    11,970.19x = 155,543,068.24
  5. Step 5: Solve for x
    x = 155,543,068.24/11,970.19
  6. Step 6: Final answer
    x = 12,994.20

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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.