Home / 10,513.16-15,769.40-4,271.33

Finding the Fourth Proportional to 10,513.16, 15,769.40 and 4,271.33

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Solution

The fourth proportional to 10,513.16, 15,769.40 and 4,271.33 is: 6,406.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,513.16 : 15,769.40 = 4,271.33 : x
  2. Step 2: Convert to fraction form
    10,513.16/15,769.40 = 4,271.33/x
  3. Step 3: Cross multiply
    10,513.16x = 15,769.40 × 4,271.33
  4. Step 4: Simplify right side
    10,513.16x = 67,356,211.10
  5. Step 5: Solve for x
    x = 67,356,211.10/10,513.16
  6. Step 6: Final answer
    x = 6,406.85

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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.