Home / 19,000.40-28,501.80-7,313.60

Finding the Fourth Proportional to 19,000.40, 28,501.80 and 7,313.60

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Solution

The fourth proportional to 19,000.40, 28,501.80 and 7,313.60 is: 10,970.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,000.40 : 28,501.80 = 7,313.60 : x
  2. Step 2: Convert to fraction form
    19,000.40/28,501.80 = 7,313.60/x
  3. Step 3: Cross multiply
    19,000.40x = 28,501.80 × 7,313.60
  4. Step 4: Simplify right side
    19,000.40x = 208,450,764.48
  5. Step 5: Solve for x
    x = 208,450,764.48/19,000.40
  6. Step 6: Final answer
    x = 10,970.86

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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.