Home / 13,509.53-18,642.84-7,541.75

Finding the Fourth Proportional to 13,509.53, 18,642.84 and 7,541.75

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Solution

The fourth proportional to 13,509.53, 18,642.84 and 7,541.75 is: 10,407.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,509.53 : 18,642.84 = 7,541.75 : x
  2. Step 2: Convert to fraction form
    13,509.53/18,642.84 = 7,541.75/x
  3. Step 3: Cross multiply
    13,509.53x = 18,642.84 × 7,541.75
  4. Step 4: Simplify right side
    13,509.53x = 140,599,638.57
  5. Step 5: Solve for x
    x = 140,599,638.57/13,509.53
  6. Step 6: Final answer
    x = 10,407.44

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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.