Home / 13,205.95-18,225.75-7,541.51

Finding the Fourth Proportional to 13,205.95, 18,225.75 and 7,541.51

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Solution

The fourth proportional to 13,205.95, 18,225.75 and 7,541.51 is: 10,408.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205.95 : 18,225.75 = 7,541.51 : x
  2. Step 2: Convert to fraction form
    13,205.95/18,225.75 = 7,541.51/x
  3. Step 3: Cross multiply
    13,205.95x = 18,225.75 × 7,541.51
  4. Step 4: Simplify right side
    13,205.95x = 137,449,675.88
  5. Step 5: Solve for x
    x = 137,449,675.88/13,205.95
  6. Step 6: Final answer
    x = 10,408.16

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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.