Home / 10,488.09-15,731.61-3,913.77

Finding the Fourth Proportional to 10,488.09, 15,731.61 and 3,913.77

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Solution

The fourth proportional to 10,488.09, 15,731.61 and 3,913.77 is: 5,870.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,488.09 : 15,731.61 = 3,913.77 : x
  2. Step 2: Convert to fraction form
    10,488.09/15,731.61 = 3,913.77/x
  3. Step 3: Cross multiply
    10,488.09x = 15,731.61 × 3,913.77
  4. Step 4: Simplify right side
    10,488.09x = 61,569,903.27
  5. Step 5: Solve for x
    x = 61,569,903.27/10,488.09
  6. Step 6: Final answer
    x = 5,870.46

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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.