Home / 14,605.63-20,155.75-7,891.26

Finding the Fourth Proportional to 14,605.63, 20,155.75 and 7,891.26

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Solution

The fourth proportional to 14,605.63, 20,155.75 and 7,891.26 is: 10,889.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,605.63 : 20,155.75 = 7,891.26 : x
  2. Step 2: Convert to fraction form
    14,605.63/20,155.75 = 7,891.26/x
  3. Step 3: Cross multiply
    14,605.63x = 20,155.75 × 7,891.26
  4. Step 4: Simplify right side
    14,605.63x = 159,054,263.75
  5. Step 5: Solve for x
    x = 159,054,263.75/14,605.63
  6. Step 6: Final answer
    x = 10,889.93

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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.