Home / 7,888.40-10,886.64-4,351.92

Finding the Fourth Proportional to 7,888.40, 10,886.64 and 4,351.92

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Solution

The fourth proportional to 7,888.40, 10,886.64 and 4,351.92 is: 6,006.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,888.40 : 10,886.64 = 4,351.92 : x
  2. Step 2: Convert to fraction form
    7,888.40/10,886.64 = 4,351.92/x
  3. Step 3: Cross multiply
    7,888.40x = 10,886.64 × 4,351.92
  4. Step 4: Simplify right side
    7,888.40x = 47,377,786.35
  5. Step 5: Solve for x
    x = 47,377,786.35/7,888.40
  6. Step 6: Final answer
    x = 6,006.01

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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.