Home / 13,455.23-20,182.70-4,690.13

Finding the Fourth Proportional to 13,455.23, 20,182.70 and 4,690.13

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Solution

The fourth proportional to 13,455.23, 20,182.70 and 4,690.13 is: 7,035.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.23 : 20,182.70 = 4,690.13 : x
  2. Step 2: Convert to fraction form
    13,455.23/20,182.70 = 4,690.13/x
  3. Step 3: Cross multiply
    13,455.23x = 20,182.70 × 4,690.13
  4. Step 4: Simplify right side
    13,455.23x = 94,659,362.39
  5. Step 5: Solve for x
    x = 94,659,362.39/13,455.23
  6. Step 6: Final answer
    x = 7,035.14

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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.