Home / 9,869.02-13,619.23-5,678.06

Finding the Fourth Proportional to 9,869.02, 13,619.23 and 5,678.06

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Solution

The fourth proportional to 9,869.02, 13,619.23 and 5,678.06 is: 7,835.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869.02 : 13,619.23 = 5,678.06 : x
  2. Step 2: Convert to fraction form
    9,869.02/13,619.23 = 5,678.06/x
  3. Step 3: Cross multiply
    9,869.02x = 13,619.23 × 5,678.06
  4. Step 4: Simplify right side
    9,869.02x = 77,330,805.09
  5. Step 5: Solve for x
    x = 77,330,805.09/9,869.02
  6. Step 6: Final answer
    x = 7,835.71

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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.