Home / 15,785.59-21,783.36-9,066.49

Finding the Fourth Proportional to 15,785.59, 21,783.36 and 9,066.49

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Solution

The fourth proportional to 15,785.59, 21,783.36 and 9,066.49 is: 12,511.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,785.59 : 21,783.36 = 9,066.49 : x
  2. Step 2: Convert to fraction form
    15,785.59/21,783.36 = 9,066.49/x
  3. Step 3: Cross multiply
    15,785.59x = 21,783.36 × 9,066.49
  4. Step 4: Simplify right side
    15,785.59x = 197,498,615.61
  5. Step 5: Solve for x
    x = 197,498,615.61/15,785.59
  6. Step 6: Final answer
    x = 12,511.32

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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.