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Finding the Fourth Proportional to 15,407.67, 21,262.46 and 8,334.11

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Solution

The fourth proportional to 15,407.67, 21,262.46 and 8,334.11 is: 11,501.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,407.67 : 21,262.46 = 8,334.11 : x
  2. Step 2: Convert to fraction form
    15,407.67/21,262.46 = 8,334.11/x
  3. Step 3: Cross multiply
    15,407.67x = 21,262.46 × 8,334.11
  4. Step 4: Simplify right side
    15,407.67x = 177,203,680.51
  5. Step 5: Solve for x
    x = 177,203,680.51/15,407.67
  6. Step 6: Final answer
    x = 11,501.00

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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.