Home / 10,486.05-15,740-4,646.76

Finding the Fourth Proportional to 10,486.05, 15,740 and 4,646.76

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Solution

The fourth proportional to 10,486.05, 15,740 and 4,646.76 is: 6,974.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,486.05 : 15,740 = 4,646.76 : x
  2. Step 2: Convert to fraction form
    10,486.05/15,740 = 4,646.76/x
  3. Step 3: Cross multiply
    10,486.05x = 15,740 × 4,646.76
  4. Step 4: Simplify right side
    10,486.05x = 73,140,002.40
  5. Step 5: Solve for x
    x = 73,140,002.40/10,486.05
  6. Step 6: Final answer
    x = 6,974.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.