Home / 9,684.04-13,371.80-7,891.76

Finding the Fourth Proportional to 9,684.04, 13,371.80 and 7,891.76

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Solution

The fourth proportional to 9,684.04, 13,371.80 and 7,891.76 is: 10,897.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,684.04 : 13,371.80 = 7,891.76 : x
  2. Step 2: Convert to fraction form
    9,684.04/13,371.80 = 7,891.76/x
  3. Step 3: Cross multiply
    9,684.04x = 13,371.80 × 7,891.76
  4. Step 4: Simplify right side
    9,684.04x = 105,527,036.37
  5. Step 5: Solve for x
    x = 105,527,036.37/9,684.04
  6. Step 6: Final answer
    x = 10,897.01

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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.