Home / 12,957.04-19,437.84-8,578.08

Finding the Fourth Proportional to 12,957.04, 19,437.84 and 8,578.08

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Solution

The fourth proportional to 12,957.04, 19,437.84 and 8,578.08 is: 12,868.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,957.04 : 19,437.84 = 8,578.08 : x
  2. Step 2: Convert to fraction form
    12,957.04/19,437.84 = 8,578.08/x
  3. Step 3: Cross multiply
    12,957.04x = 19,437.84 × 8,578.08
  4. Step 4: Simplify right side
    12,957.04x = 166,739,346.55
  5. Step 5: Solve for x
    x = 166,739,346.55/12,957.04
  6. Step 6: Final answer
    x = 12,868.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.