Home / 18,515.60-25,547.46-10,958.16

Finding the Fourth Proportional to 18,515.60, 25,547.46 and 10,958.16

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Solution

The fourth proportional to 18,515.60, 25,547.46 and 10,958.16 is: 15,119.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.60 : 25,547.46 = 10,958.16 : x
  2. Step 2: Convert to fraction form
    18,515.60/25,547.46 = 10,958.16/x
  3. Step 3: Cross multiply
    18,515.60x = 25,547.46 × 10,958.16
  4. Step 4: Simplify right side
    18,515.60x = 279,953,154.27
  5. Step 5: Solve for x
    x = 279,953,154.27/18,515.60
  6. Step 6: Final answer
    x = 15,119.85

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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.