Home / 19,925.76-27,506.88-11,540.64

Finding the Fourth Proportional to 19,925.76, 27,506.88 and 11,540.64

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Solution

The fourth proportional to 19,925.76, 27,506.88 and 11,540.64 is: 15,931.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,925.76 : 27,506.88 = 11,540.64 : x
  2. Step 2: Convert to fraction form
    19,925.76/27,506.88 = 11,540.64/x
  3. Step 3: Cross multiply
    19,925.76x = 27,506.88 × 11,540.64
  4. Step 4: Simplify right side
    19,925.76x = 317,446,999.60
  5. Step 5: Solve for x
    x = 317,446,999.60/19,925.76
  6. Step 6: Final answer
    x = 15,931.49

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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.