Home / 11,563.26-15,941.40-7,312.20

Finding the Fourth Proportional to 11,563.26, 15,941.40 and 7,312.20

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Solution

The fourth proportional to 11,563.26, 15,941.40 and 7,312.20 is: 10,080.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,563.26 : 15,941.40 = 7,312.20 : x
  2. Step 2: Convert to fraction form
    11,563.26/15,941.40 = 7,312.20/x
  3. Step 3: Cross multiply
    11,563.26x = 15,941.40 × 7,312.20
  4. Step 4: Simplify right side
    11,563.26x = 116,566,705.08
  5. Step 5: Solve for x
    x = 116,566,705.08/11,563.26
  6. Step 6: Final answer
    x = 10,080.78

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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.