Home / 14,068.60-19,411.86-7,779.76

Finding the Fourth Proportional to 14,068.60, 19,411.86 and 7,779.76

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Solution

The fourth proportional to 14,068.60, 19,411.86 and 7,779.76 is: 10,734.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,068.60 : 19,411.86 = 7,779.76 : x
  2. Step 2: Convert to fraction form
    14,068.60/19,411.86 = 7,779.76/x
  3. Step 3: Cross multiply
    14,068.60x = 19,411.86 × 7,779.76
  4. Step 4: Simplify right side
    14,068.60x = 151,019,611.95
  5. Step 5: Solve for x
    x = 151,019,611.95/14,068.60
  6. Step 6: Final answer
    x = 10,734.52

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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.