Home / 14,200.80-19,595.70-7,912.50

Finding the Fourth Proportional to 14,200.80, 19,595.70 and 7,912.50

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Solution

The fourth proportional to 14,200.80, 19,595.70 and 7,912.50 is: 10,918.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,200.80 : 19,595.70 = 7,912.50 : x
  2. Step 2: Convert to fraction form
    14,200.80/19,595.70 = 7,912.50/x
  3. Step 3: Cross multiply
    14,200.80x = 19,595.70 × 7,912.50
  4. Step 4: Simplify right side
    14,200.80x = 155,050,976.25
  5. Step 5: Solve for x
    x = 155,050,976.25/14,200.80
  6. Step 6: Final answer
    x = 10,918.47

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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.