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Finding the Fourth Proportional to 14,350.77, 19,804.05 and 7,977.16

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Solution

The fourth proportional to 14,350.77, 19,804.05 and 7,977.16 is: 11,008.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,350.77 : 19,804.05 = 7,977.16 : x
  2. Step 2: Convert to fraction form
    14,350.77/19,804.05 = 7,977.16/x
  3. Step 3: Cross multiply
    14,350.77x = 19,804.05 × 7,977.16
  4. Step 4: Simplify right side
    14,350.77x = 157,980,100.25
  5. Step 5: Solve for x
    x = 157,980,100.25/14,350.77
  6. Step 6: Final answer
    x = 11,008.48

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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.