Home / 10,271.10-14,174.10-5,555.40

Finding the Fourth Proportional to 10,271.10, 14,174.10 and 5,555.40

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Solution

The fourth proportional to 10,271.10, 14,174.10 and 5,555.40 is: 7,666.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,271.10 : 14,174.10 = 5,555.40 : x
  2. Step 2: Convert to fraction form
    10,271.10/14,174.10 = 5,555.40/x
  3. Step 3: Cross multiply
    10,271.10x = 14,174.10 × 5,555.40
  4. Step 4: Simplify right side
    10,271.10x = 78,742,795.14
  5. Step 5: Solve for x
    x = 78,742,795.14/10,271.10
  6. Step 6: Final answer
    x = 7,666.44

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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.