Home / 15,803.15-21,790.15-10,770.41

Finding the Fourth Proportional to 15,803.15, 21,790.15 and 10,770.41

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Solution

The fourth proportional to 15,803.15, 21,790.15 and 10,770.41 is: 14,850.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,803.15 : 21,790.15 = 10,770.41 : x
  2. Step 2: Convert to fraction form
    15,803.15/21,790.15 = 10,770.41/x
  3. Step 3: Cross multiply
    15,803.15x = 21,790.15 × 10,770.41
  4. Step 4: Simplify right side
    15,803.15x = 234,688,877.01
  5. Step 5: Solve for x
    x = 234,688,877.01/15,803.15
  6. Step 6: Final answer
    x = 14,850.77

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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.