Home / 13,051.60-19,577.44-4,287.20

Finding the Fourth Proportional to 13,051.60, 19,577.44 and 4,287.20

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Solution

The fourth proportional to 13,051.60, 19,577.44 and 4,287.20 is: 6,430.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,051.60 : 19,577.44 = 4,287.20 : x
  2. Step 2: Convert to fraction form
    13,051.60/19,577.44 = 4,287.20/x
  3. Step 3: Cross multiply
    13,051.60x = 19,577.44 × 4,287.20
  4. Step 4: Simplify right side
    13,051.60x = 83,932,400.77
  5. Step 5: Solve for x
    x = 83,932,400.77/13,051.60
  6. Step 6: Final answer
    x = 6,430.81

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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.