Home / 15,698.11-21,663.55-8,528.09

Finding the Fourth Proportional to 15,698.11, 21,663.55 and 8,528.09

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Solution

The fourth proportional to 15,698.11, 21,663.55 and 8,528.09 is: 11,768.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,698.11 : 21,663.55 = 8,528.09 : x
  2. Step 2: Convert to fraction form
    15,698.11/21,663.55 = 8,528.09/x
  3. Step 3: Cross multiply
    15,698.11x = 21,663.55 × 8,528.09
  4. Step 4: Simplify right side
    15,698.11x = 184,748,704.12
  5. Step 5: Solve for x
    x = 184,748,704.12/15,698.11
  6. Step 6: Final answer
    x = 11,768.85

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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.