Home / 13,501.40-18,631.24-7,452.70

Finding the Fourth Proportional to 13,501.40, 18,631.24 and 7,452.70

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Solution

The fourth proportional to 13,501.40, 18,631.24 and 7,452.70 is: 10,284.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,501.40 : 18,631.24 = 7,452.70 : x
  2. Step 2: Convert to fraction form
    13,501.40/18,631.24 = 7,452.70/x
  3. Step 3: Cross multiply
    13,501.40x = 18,631.24 × 7,452.70
  4. Step 4: Simplify right side
    13,501.40x = 138,852,977.14
  5. Step 5: Solve for x
    x = 138,852,977.14/13,501.40
  6. Step 6: Final answer
    x = 10,284.34

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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.