Home / 11,528.60-15,908.82-6,813.32

Finding the Fourth Proportional to 11,528.60, 15,908.82 and 6,813.32

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Solution

The fourth proportional to 11,528.60, 15,908.82 and 6,813.32 is: 9,402.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,528.60 : 15,908.82 = 6,813.32 : x
  2. Step 2: Convert to fraction form
    11,528.60/15,908.82 = 6,813.32/x
  3. Step 3: Cross multiply
    11,528.60x = 15,908.82 × 6,813.32
  4. Step 4: Simplify right side
    11,528.60x = 108,391,881.48
  5. Step 5: Solve for x
    x = 108,391,881.48/11,528.60
  6. Step 6: Final answer
    x = 9,402.00

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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.