Home / 12,362.40-18,543.60-4,570.20

Finding the Fourth Proportional to 12,362.40, 18,543.60 and 4,570.20

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Solution

The fourth proportional to 12,362.40, 18,543.60 and 4,570.20 is: 6,855.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,362.40 : 18,543.60 = 4,570.20 : x
  2. Step 2: Convert to fraction form
    12,362.40/18,543.60 = 4,570.20/x
  3. Step 3: Cross multiply
    12,362.40x = 18,543.60 × 4,570.20
  4. Step 4: Simplify right side
    12,362.40x = 84,747,960.72
  5. Step 5: Solve for x
    x = 84,747,960.72/12,362.40
  6. Step 6: Final answer
    x = 6,855.30

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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.