Home / 10,222.40-14,099.36-7,569.92

Finding the Fourth Proportional to 10,222.40, 14,099.36 and 7,569.92

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Solution

The fourth proportional to 10,222.40, 14,099.36 and 7,569.92 is: 10,440.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,222.40 : 14,099.36 = 7,569.92 : x
  2. Step 2: Convert to fraction form
    10,222.40/14,099.36 = 7,569.92/x
  3. Step 3: Cross multiply
    10,222.40x = 14,099.36 × 7,569.92
  4. Step 4: Simplify right side
    10,222.40x = 106,731,027.25
  5. Step 5: Solve for x
    x = 106,731,027.25/10,222.40
  6. Step 6: Final answer
    x = 10,440.90

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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.