Home / 10,992.16-15,145.44-9,193.36

Finding the Fourth Proportional to 10,992.16, 15,145.44 and 9,193.36

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Solution

The fourth proportional to 10,992.16, 15,145.44 and 9,193.36 is: 12,666.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.16 : 15,145.44 = 9,193.36 : x
  2. Step 2: Convert to fraction form
    10,992.16/15,145.44 = 9,193.36/x
  3. Step 3: Cross multiply
    10,992.16x = 15,145.44 × 9,193.36
  4. Step 4: Simplify right side
    10,992.16x = 139,237,482.28
  5. Step 5: Solve for x
    x = 139,237,482.28/10,992.16
  6. Step 6: Final answer
    x = 12,666.98

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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.