Home / 13,826.56-19,075.22-7,775.40

Finding the Fourth Proportional to 13,826.56, 19,075.22 and 7,775.40

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Solution

The fourth proportional to 13,826.56, 19,075.22 and 7,775.40 is: 10,727.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.56 : 19,075.22 = 7,775.40 : x
  2. Step 2: Convert to fraction form
    13,826.56/19,075.22 = 7,775.40/x
  3. Step 3: Cross multiply
    13,826.56x = 19,075.22 × 7,775.40
  4. Step 4: Simplify right side
    13,826.56x = 148,317,465.59
  5. Step 5: Solve for x
    x = 148,317,465.59/13,826.56
  6. Step 6: Final answer
    x = 10,727.00

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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.