Home / 15,506.16-21,398.10-8,792.46

Finding the Fourth Proportional to 15,506.16, 21,398.10 and 8,792.46

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Solution

The fourth proportional to 15,506.16, 21,398.10 and 8,792.46 is: 12,133.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,506.16 : 21,398.10 = 8,792.46 : x
  2. Step 2: Convert to fraction form
    15,506.16/21,398.10 = 8,792.46/x
  3. Step 3: Cross multiply
    15,506.16x = 21,398.10 × 8,792.46
  4. Step 4: Simplify right side
    15,506.16x = 188,141,938.33
  5. Step 5: Solve for x
    x = 188,141,938.33/15,506.16
  6. Step 6: Final answer
    x = 12,133.37

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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.