Home / 12,405.60-18,602.55-4,810.46

Finding the Fourth Proportional to 12,405.60, 18,602.55 and 4,810.46

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Solution

The fourth proportional to 12,405.60, 18,602.55 and 4,810.46 is: 7,213.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,405.60 : 18,602.55 = 4,810.46 : x
  2. Step 2: Convert to fraction form
    12,405.60/18,602.55 = 4,810.46/x
  3. Step 3: Cross multiply
    12,405.60x = 18,602.55 × 4,810.46
  4. Step 4: Simplify right side
    12,405.60x = 89,486,729.66
  5. Step 5: Solve for x
    x = 89,486,729.66/12,405.60
  6. Step 6: Final answer
    x = 7,213.41

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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.