Home / 10,438.47-14,405.75-5,722.76

Finding the Fourth Proportional to 10,438.47, 14,405.75 and 5,722.76

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Solution

The fourth proportional to 10,438.47, 14,405.75 and 5,722.76 is: 7,897.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,438.47 : 14,405.75 = 5,722.76 : x
  2. Step 2: Convert to fraction form
    10,438.47/14,405.75 = 5,722.76/x
  3. Step 3: Cross multiply
    10,438.47x = 14,405.75 × 5,722.76
  4. Step 4: Simplify right side
    10,438.47x = 82,440,649.87
  5. Step 5: Solve for x
    x = 82,440,649.87/10,438.47
  6. Step 6: Final answer
    x = 7,897.77

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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.