Home / 9,109.60-12,570.99-5,130.74

Finding the Fourth Proportional to 9,109.60, 12,570.99 and 5,130.74

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Solution

The fourth proportional to 9,109.60, 12,570.99 and 5,130.74 is: 7,080.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109.60 : 12,570.99 = 5,130.74 : x
  2. Step 2: Convert to fraction form
    9,109.60/12,570.99 = 5,130.74/x
  3. Step 3: Cross multiply
    9,109.60x = 12,570.99 × 5,130.74
  4. Step 4: Simplify right side
    9,109.60x = 64,498,493.42
  5. Step 5: Solve for x
    x = 64,498,493.42/9,109.60
  6. Step 6: Final answer
    x = 7,080.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.