Home / 13,515.88-18,652.44-7,549.06

Finding the Fourth Proportional to 13,515.88, 18,652.44 and 7,549.06

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Solution

The fourth proportional to 13,515.88, 18,652.44 and 7,549.06 is: 10,418.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.88 : 18,652.44 = 7,549.06 : x
  2. Step 2: Convert to fraction form
    13,515.88/18,652.44 = 7,549.06/x
  3. Step 3: Cross multiply
    13,515.88x = 18,652.44 × 7,549.06
  4. Step 4: Simplify right side
    13,515.88x = 140,808,388.71
  5. Step 5: Solve for x
    x = 140,808,388.71/13,515.88
  6. Step 6: Final answer
    x = 10,418.00

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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.