Home / 13,583.12-20,376.48-6,187.28

Finding the Fourth Proportional to 13,583.12, 20,376.48 and 6,187.28

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Solution

The fourth proportional to 13,583.12, 20,376.48 and 6,187.28 is: 9,281.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.12 : 20,376.48 = 6,187.28 : x
  2. Step 2: Convert to fraction form
    13,583.12/20,376.48 = 6,187.28/x
  3. Step 3: Cross multiply
    13,583.12x = 20,376.48 × 6,187.28
  4. Step 4: Simplify right side
    13,583.12x = 126,074,987.17
  5. Step 5: Solve for x
    x = 126,074,987.17/13,583.12
  6. Step 6: Final answer
    x = 9,281.74

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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.