Home / 11,135.22-16,621.55-10,312.98

Finding the Fourth Proportional to 11,135.22, 16,621.55 and 10,312.98

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Solution

The fourth proportional to 11,135.22, 16,621.55 and 10,312.98 is: 15,394.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.22 : 16,621.55 = 10,312.98 : x
  2. Step 2: Convert to fraction form
    11,135.22/16,621.55 = 10,312.98/x
  3. Step 3: Cross multiply
    11,135.22x = 16,621.55 × 10,312.98
  4. Step 4: Simplify right side
    11,135.22x = 171,417,661.15
  5. Step 5: Solve for x
    x = 171,417,661.15/11,135.22
  6. Step 6: Final answer
    x = 15,394.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.