Home / 11,137.24-15,368.82-6,421.24

Finding the Fourth Proportional to 11,137.24, 15,368.82 and 6,421.24

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Solution

The fourth proportional to 11,137.24, 15,368.82 and 6,421.24 is: 8,860.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,137.24 : 15,368.82 = 6,421.24 : x
  2. Step 2: Convert to fraction form
    11,137.24/15,368.82 = 6,421.24/x
  3. Step 3: Cross multiply
    11,137.24x = 15,368.82 × 6,421.24
  4. Step 4: Simplify right side
    11,137.24x = 98,686,881.74
  5. Step 5: Solve for x
    x = 98,686,881.74/11,137.24
  6. Step 6: Final answer
    x = 8,860.98

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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.