Home / 14,178.95-19,567.08-7,891.33

Finding the Fourth Proportional to 14,178.95, 19,567.08 and 7,891.33

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Solution

The fourth proportional to 14,178.95, 19,567.08 and 7,891.33 is: 10,890.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.95 : 19,567.08 = 7,891.33 : x
  2. Step 2: Convert to fraction form
    14,178.95/19,567.08 = 7,891.33/x
  3. Step 3: Cross multiply
    14,178.95x = 19,567.08 × 7,891.33
  4. Step 4: Simplify right side
    14,178.95x = 154,410,236.50
  5. Step 5: Solve for x
    x = 154,410,236.50/14,178.95
  6. Step 6: Final answer
    x = 10,890.10

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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.