Home / 12,597.44-18,870.20-7,390.76

Finding the Fourth Proportional to 12,597.44, 18,870.20 and 7,390.76

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Solution

The fourth proportional to 12,597.44, 18,870.20 and 7,390.76 is: 11,070.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,597.44 : 18,870.20 = 7,390.76 : x
  2. Step 2: Convert to fraction form
    12,597.44/18,870.20 = 7,390.76/x
  3. Step 3: Cross multiply
    12,597.44x = 18,870.20 × 7,390.76
  4. Step 4: Simplify right side
    12,597.44x = 139,465,119.35
  5. Step 5: Solve for x
    x = 139,465,119.35/12,597.44
  6. Step 6: Final answer
    x = 11,070.91

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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.