Home / 13,583.40-18,744.58-7,615.24

Finding the Fourth Proportional to 13,583.40, 18,744.58 and 7,615.24

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Solution

The fourth proportional to 13,583.40, 18,744.58 and 7,615.24 is: 10,508.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.40 : 18,744.58 = 7,615.24 : x
  2. Step 2: Convert to fraction form
    13,583.40/18,744.58 = 7,615.24/x
  3. Step 3: Cross multiply
    13,583.40x = 18,744.58 × 7,615.24
  4. Step 4: Simplify right side
    13,583.40x = 142,744,475.40
  5. Step 5: Solve for x
    x = 142,744,475.40/13,583.40
  6. Step 6: Final answer
    x = 10,508.74

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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.