Home / 13,107.95-18,089.45-7,734.08

Finding the Fourth Proportional to 13,107.95, 18,089.45 and 7,734.08

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Solution

The fourth proportional to 13,107.95, 18,089.45 and 7,734.08 is: 10,673.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,107.95 : 18,089.45 = 7,734.08 : x
  2. Step 2: Convert to fraction form
    13,107.95/18,089.45 = 7,734.08/x
  3. Step 3: Cross multiply
    13,107.95x = 18,089.45 × 7,734.08
  4. Step 4: Simplify right side
    13,107.95x = 139,905,310.76
  5. Step 5: Solve for x
    x = 139,905,310.76/13,107.95
  6. Step 6: Final answer
    x = 10,673.32

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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.