Home / 11,512.04-15,886.80-6,477.32

Finding the Fourth Proportional to 11,512.04, 15,886.80 and 6,477.32

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Solution

The fourth proportional to 11,512.04, 15,886.80 and 6,477.32 is: 8,938.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,512.04 : 15,886.80 = 6,477.32 : x
  2. Step 2: Convert to fraction form
    11,512.04/15,886.80 = 6,477.32/x
  3. Step 3: Cross multiply
    11,512.04x = 15,886.80 × 6,477.32
  4. Step 4: Simplify right side
    11,512.04x = 102,903,887.38
  5. Step 5: Solve for x
    x = 102,903,887.38/11,512.04
  6. Step 6: Final answer
    x = 8,938.81

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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.