Home / 13,378.90-20,066.28-5,054.74

Finding the Fourth Proportional to 13,378.90, 20,066.28 and 5,054.74

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Solution

The fourth proportional to 13,378.90, 20,066.28 and 5,054.74 is: 7,581.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,378.90 : 20,066.28 = 5,054.74 : x
  2. Step 2: Convert to fraction form
    13,378.90/20,066.28 = 5,054.74/x
  3. Step 3: Cross multiply
    13,378.90x = 20,066.28 × 5,054.74
  4. Step 4: Simplify right side
    13,378.90x = 101,429,828.17
  5. Step 5: Solve for x
    x = 101,429,828.17/13,378.90
  6. Step 6: Final answer
    x = 7,581.33

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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.