Home / 13,458.29-20,187.51-4,693.21

Finding the Fourth Proportional to 13,458.29, 20,187.51 and 4,693.21

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Solution

The fourth proportional to 13,458.29, 20,187.51 and 4,693.21 is: 7,039.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.29 : 20,187.51 = 4,693.21 : x
  2. Step 2: Convert to fraction form
    13,458.29/20,187.51 = 4,693.21/x
  3. Step 3: Cross multiply
    13,458.29x = 20,187.51 × 4,693.21
  4. Step 4: Simplify right side
    13,458.29x = 94,744,182.14
  5. Step 5: Solve for x
    x = 94,744,182.14/13,458.29
  6. Step 6: Final answer
    x = 7,039.84

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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.