Home / 15,989.60-22,068.24-9,706.40

Finding the Fourth Proportional to 15,989.60, 22,068.24 and 9,706.40

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Solution

The fourth proportional to 15,989.60, 22,068.24 and 9,706.40 is: 13,396.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,989.60 : 22,068.24 = 9,706.40 : x
  2. Step 2: Convert to fraction form
    15,989.60/22,068.24 = 9,706.40/x
  3. Step 3: Cross multiply
    15,989.60x = 22,068.24 × 9,706.40
  4. Step 4: Simplify right side
    15,989.60x = 214,203,164.74
  5. Step 5: Solve for x
    x = 214,203,164.74/15,989.60
  6. Step 6: Final answer
    x = 13,396.41

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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.