Home / 15,653.62-21,597.24-9,683.20

Finding the Fourth Proportional to 15,653.62, 21,597.24 and 9,683.20

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Solution

The fourth proportional to 15,653.62, 21,597.24 and 9,683.20 is: 13,359.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,653.62 : 21,597.24 = 9,683.20 : x
  2. Step 2: Convert to fraction form
    15,653.62/21,597.24 = 9,683.20/x
  3. Step 3: Cross multiply
    15,653.62x = 21,597.24 × 9,683.20
  4. Step 4: Simplify right side
    15,653.62x = 209,130,394.37
  5. Step 5: Solve for x
    x = 209,130,394.37/15,653.62
  6. Step 6: Final answer
    x = 13,359.87

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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.