Home / 10,378.64-15,551.55-10,367.70

Finding the Fourth Proportional to 10,378.64, 15,551.55 and 10,367.70

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Solution

The fourth proportional to 10,378.64, 15,551.55 and 10,367.70 is: 15,535.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.64 : 15,551.55 = 10,367.70 : x
  2. Step 2: Convert to fraction form
    10,378.64/15,551.55 = 10,367.70/x
  3. Step 3: Cross multiply
    10,378.64x = 15,551.55 × 10,367.70
  4. Step 4: Simplify right side
    10,378.64x = 161,233,804.94
  5. Step 5: Solve for x
    x = 161,233,804.94/10,378.64
  6. Step 6: Final answer
    x = 15,535.16

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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.