Home / 14,705.07-20,292.93-7,990.57

Finding the Fourth Proportional to 14,705.07, 20,292.93 and 7,990.57

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Solution

The fourth proportional to 14,705.07, 20,292.93 and 7,990.57 is: 11,026.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,705.07 : 20,292.93 = 7,990.57 : x
  2. Step 2: Convert to fraction form
    14,705.07/20,292.93 = 7,990.57/x
  3. Step 3: Cross multiply
    14,705.07x = 20,292.93 × 7,990.57
  4. Step 4: Simplify right side
    14,705.07x = 162,152,077.67
  5. Step 5: Solve for x
    x = 162,152,077.67/14,705.07
  6. Step 6: Final answer
    x = 11,026.95

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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.