Home / 10,254.80-15,378.60-3,681.20

Finding the Fourth Proportional to 10,254.80, 15,378.60 and 3,681.20

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Solution

The fourth proportional to 10,254.80, 15,378.60 and 3,681.20 is: 5,520.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,254.80 : 15,378.60 = 3,681.20 : x
  2. Step 2: Convert to fraction form
    10,254.80/15,378.60 = 3,681.20/x
  3. Step 3: Cross multiply
    10,254.80x = 15,378.60 × 3,681.20
  4. Step 4: Simplify right side
    10,254.80x = 56,611,702.32
  5. Step 5: Solve for x
    x = 56,611,702.32/10,254.80
  6. Step 6: Final answer
    x = 5,520.51

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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.