Home / 11,477.31-15,838.32-6,441.40

Finding the Fourth Proportional to 11,477.31, 15,838.32 and 6,441.40

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Solution

The fourth proportional to 11,477.31, 15,838.32 and 6,441.40 is: 8,888.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,477.31 : 15,838.32 = 6,441.40 : x
  2. Step 2: Convert to fraction form
    11,477.31/15,838.32 = 6,441.40/x
  3. Step 3: Cross multiply
    11,477.31x = 15,838.32 × 6,441.40
  4. Step 4: Simplify right side
    11,477.31x = 102,020,944.80
  5. Step 5: Solve for x
    x = 102,020,944.80/11,477.31
  6. Step 6: Final answer
    x = 8,888.93

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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.