Home / 10,900.96-15,043.18-6,424.90

Finding the Fourth Proportional to 10,900.96, 15,043.18 and 6,424.90

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Solution

The fourth proportional to 10,900.96, 15,043.18 and 6,424.90 is: 8,866.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,900.96 : 15,043.18 = 6,424.90 : x
  2. Step 2: Convert to fraction form
    10,900.96/15,043.18 = 6,424.90/x
  3. Step 3: Cross multiply
    10,900.96x = 15,043.18 × 6,424.90
  4. Step 4: Simplify right side
    10,900.96x = 96,650,927.18
  5. Step 5: Solve for x
    x = 96,650,927.18/10,900.96
  6. Step 6: Final answer
    x = 8,866.28

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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.