Home / 13,453.40-20,180.16-4,688.30

Finding the Fourth Proportional to 13,453.40, 20,180.16 and 4,688.30

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Solution

The fourth proportional to 13,453.40, 20,180.16 and 4,688.30 is: 7,032.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,453.40 : 20,180.16 = 4,688.30 : x
  2. Step 2: Convert to fraction form
    13,453.40/20,180.16 = 4,688.30/x
  3. Step 3: Cross multiply
    13,453.40x = 20,180.16 × 4,688.30
  4. Step 4: Simplify right side
    13,453.40x = 94,610,644.13
  5. Step 5: Solve for x
    x = 94,610,644.13/13,453.40
  6. Step 6: Final answer
    x = 7,032.47

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1.5x scale

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.