Home / 11,032.85-15,210.70-9,137.45

Finding the Fourth Proportional to 11,032.85, 15,210.70 and 9,137.45

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Solution

The fourth proportional to 11,032.85, 15,210.70 and 9,137.45 is: 12,597.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,032.85 : 15,210.70 = 9,137.45 : x
  2. Step 2: Convert to fraction form
    11,032.85/15,210.70 = 9,137.45/x
  3. Step 3: Cross multiply
    11,032.85x = 15,210.70 × 9,137.45
  4. Step 4: Simplify right side
    11,032.85x = 138,986,911.82
  5. Step 5: Solve for x
    x = 138,986,911.82/11,032.85
  6. Step 6: Final answer
    x = 12,597.56

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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.