Home / 13,346.47-18,416.51-7,378.19

Finding the Fourth Proportional to 13,346.47, 18,416.51 and 7,378.19

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Solution

The fourth proportional to 13,346.47, 18,416.51 and 7,378.19 is: 10,181.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.47 : 18,416.51 = 7,378.19 : x
  2. Step 2: Convert to fraction form
    13,346.47/18,416.51 = 7,378.19/x
  3. Step 3: Cross multiply
    13,346.47x = 18,416.51 × 7,378.19
  4. Step 4: Simplify right side
    13,346.47x = 135,880,519.18
  5. Step 5: Solve for x
    x = 135,880,519.18/13,346.47
  6. Step 6: Final answer
    x = 10,181.01

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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.