Home / 15,684.85-21,635.58-9,307.24

Finding the Fourth Proportional to 15,684.85, 21,635.58 and 9,307.24

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Solution

The fourth proportional to 15,684.85, 21,635.58 and 9,307.24 is: 12,838.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,684.85 : 21,635.58 = 9,307.24 : x
  2. Step 2: Convert to fraction form
    15,684.85/21,635.58 = 9,307.24/x
  3. Step 3: Cross multiply
    15,684.85x = 21,635.58 × 9,307.24
  4. Step 4: Simplify right side
    15,684.85x = 201,367,558.87
  5. Step 5: Solve for x
    x = 201,367,558.87/15,684.85
  6. Step 6: Final answer
    x = 12,838.35

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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.