Home / 15,242.84-21,035.45-8,528.39

Finding the Fourth Proportional to 15,242.84, 21,035.45 and 8,528.39

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Solution

The fourth proportional to 15,242.84, 21,035.45 and 8,528.39 is: 11,769.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,242.84 : 21,035.45 = 8,528.39 : x
  2. Step 2: Convert to fraction form
    15,242.84/21,035.45 = 8,528.39/x
  3. Step 3: Cross multiply
    15,242.84x = 21,035.45 × 8,528.39
  4. Step 4: Simplify right side
    15,242.84x = 179,398,521.43
  5. Step 5: Solve for x
    x = 179,398,521.43/15,242.84
  6. Step 6: Final answer
    x = 11,769.36

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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.