Home / 10,271.38-14,174.49-5,555.66

Finding the Fourth Proportional to 10,271.38, 14,174.49 and 5,555.66

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Solution

The fourth proportional to 10,271.38, 14,174.49 and 5,555.66 is: 7,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,271.38 : 14,174.49 = 5,555.66 : x
  2. Step 2: Convert to fraction form
    10,271.38/14,174.49 = 5,555.66/x
  3. Step 3: Cross multiply
    10,271.38x = 14,174.49 × 5,555.66
  4. Step 4: Simplify right side
    10,271.38x = 78,748,647.11
  5. Step 5: Solve for x
    x = 78,748,647.11/10,271.38
  6. Step 6: Final answer
    x = 7,666.80

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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.