Home / 10,203.95-15,311.88-4,280.33

Finding the Fourth Proportional to 10,203.95, 15,311.88 and 4,280.33

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Solution

The fourth proportional to 10,203.95, 15,311.88 and 4,280.33 is: 6,423.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,203.95 : 15,311.88 = 4,280.33 : x
  2. Step 2: Convert to fraction form
    10,203.95/15,311.88 = 4,280.33/x
  3. Step 3: Cross multiply
    10,203.95x = 15,311.88 × 4,280.33
  4. Step 4: Simplify right side
    10,203.95x = 65,539,937.60
  5. Step 5: Solve for x
    x = 65,539,937.60/10,203.95
  6. Step 6: Final answer
    x = 6,423.00

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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.