Home / 15,655.41-21,607.46-12,245.67

Finding the Fourth Proportional to 15,655.41, 21,607.46 and 12,245.67

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Solution

The fourth proportional to 15,655.41, 21,607.46 and 12,245.67 is: 16,901.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,655.41 : 21,607.46 = 12,245.67 : x
  2. Step 2: Convert to fraction form
    15,655.41/21,607.46 = 12,245.67/x
  3. Step 3: Cross multiply
    15,655.41x = 21,607.46 × 12,245.67
  4. Step 4: Simplify right side
    15,655.41x = 264,597,763.47
  5. Step 5: Solve for x
    x = 264,597,763.47/15,655.41
  6. Step 6: Final answer
    x = 16,901.36

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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.