Home / 13,174.59-18,182.64-7,511.40

Finding the Fourth Proportional to 13,174.59, 18,182.64 and 7,511.40

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Solution

The fourth proportional to 13,174.59, 18,182.64 and 7,511.40 is: 10,366.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,174.59 : 18,182.64 = 7,511.40 : x
  2. Step 2: Convert to fraction form
    13,174.59/18,182.64 = 7,511.40/x
  3. Step 3: Cross multiply
    13,174.59x = 18,182.64 × 7,511.40
  4. Step 4: Simplify right side
    13,174.59x = 136,577,082.10
  5. Step 5: Solve for x
    x = 136,577,082.10/13,174.59
  6. Step 6: Final answer
    x = 10,366.70

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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.