Home / 18,376.95-25,359.69-10,419.51

Finding the Fourth Proportional to 18,376.95, 25,359.69 and 10,419.51

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Solution

The fourth proportional to 18,376.95, 25,359.69 and 10,419.51 is: 14,378.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,376.95 : 25,359.69 = 10,419.51 : x
  2. Step 2: Convert to fraction form
    18,376.95/25,359.69 = 10,419.51/x
  3. Step 3: Cross multiply
    18,376.95x = 25,359.69 × 10,419.51
  4. Step 4: Simplify right side
    18,376.95x = 264,235,543.55
  5. Step 5: Solve for x
    x = 264,235,543.55/18,376.95
  6. Step 6: Final answer
    x = 14,378.64

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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.