Home / 11,513.42-15,888.34-6,477.64

Finding the Fourth Proportional to 11,513.42, 15,888.34 and 6,477.64

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Solution

The fourth proportional to 11,513.42, 15,888.34 and 6,477.64 is: 8,939.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,513.42 : 15,888.34 = 6,477.64 : x
  2. Step 2: Convert to fraction form
    11,513.42/15,888.34 = 6,477.64/x
  3. Step 3: Cross multiply
    11,513.42x = 15,888.34 × 6,477.64
  4. Step 4: Simplify right side
    11,513.42x = 102,918,946.72
  5. Step 5: Solve for x
    x = 102,918,946.72/11,513.42
  6. Step 6: Final answer
    x = 8,939.04

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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.