Home / 10,887.72-15,006.76-8,334.60

Finding the Fourth Proportional to 10,887.72, 15,006.76 and 8,334.60

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Solution

The fourth proportional to 10,887.72, 15,006.76 and 8,334.60 is: 11,487.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.72 : 15,006.76 = 8,334.60 : x
  2. Step 2: Convert to fraction form
    10,887.72/15,006.76 = 8,334.60/x
  3. Step 3: Cross multiply
    10,887.72x = 15,006.76 × 8,334.60
  4. Step 4: Simplify right side
    10,887.72x = 125,075,341.90
  5. Step 5: Solve for x
    x = 125,075,341.90/10,887.72
  6. Step 6: Final answer
    x = 11,487.74

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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.