Home / 10,812.50-14,921.33-6,623.54

Finding the Fourth Proportional to 10,812.50, 14,921.33 and 6,623.54

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Solution

The fourth proportional to 10,812.50, 14,921.33 and 6,623.54 is: 9,140.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,812.50 : 14,921.33 = 6,623.54 : x
  2. Step 2: Convert to fraction form
    10,812.50/14,921.33 = 6,623.54/x
  3. Step 3: Cross multiply
    10,812.50x = 14,921.33 × 6,623.54
  4. Step 4: Simplify right side
    10,812.50x = 98,832,026.11
  5. Step 5: Solve for x
    x = 98,832,026.11/10,812.50
  6. Step 6: Final answer
    x = 9,140.53

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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.