Home / 7,376.13-10,178.93-4,189.39

Finding the Fourth Proportional to 7,376.13, 10,178.93 and 4,189.39

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Solution

The fourth proportional to 7,376.13, 10,178.93 and 4,189.39 is: 5,781.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,376.13 : 10,178.93 = 4,189.39 : x
  2. Step 2: Convert to fraction form
    7,376.13/10,178.93 = 4,189.39/x
  3. Step 3: Cross multiply
    7,376.13x = 10,178.93 × 4,189.39
  4. Step 4: Simplify right side
    7,376.13x = 42,643,492.58
  5. Step 5: Solve for x
    x = 42,643,492.58/7,376.13
  6. Step 6: Final answer
    x = 5,781.28

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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.