Home / 12,312.03-16,986.60-7,276.40

Finding the Fourth Proportional to 12,312.03, 16,986.60 and 7,276.40

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Solution

The fourth proportional to 12,312.03, 16,986.60 and 7,276.40 is: 10,039.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312.03 : 16,986.60 = 7,276.40 : x
  2. Step 2: Convert to fraction form
    12,312.03/16,986.60 = 7,276.40/x
  3. Step 3: Cross multiply
    12,312.03x = 16,986.60 × 7,276.40
  4. Step 4: Simplify right side
    12,312.03x = 123,601,296.24
  5. Step 5: Solve for x
    x = 123,601,296.24/12,312.03
  6. Step 6: Final answer
    x = 10,039.07

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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.