Home / 11,154.51-15,409.24-8,913.44

Finding the Fourth Proportional to 11,154.51, 15,409.24 and 8,913.44

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Solution

The fourth proportional to 11,154.51, 15,409.24 and 8,913.44 is: 12,313.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,154.51 : 15,409.24 = 8,913.44 : x
  2. Step 2: Convert to fraction form
    11,154.51/15,409.24 = 8,913.44/x
  3. Step 3: Cross multiply
    11,154.51x = 15,409.24 × 8,913.44
  4. Step 4: Simplify right side
    11,154.51x = 137,349,352.43
  5. Step 5: Solve for x
    x = 137,349,352.43/11,154.51
  6. Step 6: Final answer
    x = 12,313.35

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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.