Home / 18,376.40-25,358.67-10,419.17

Finding the Fourth Proportional to 18,376.40, 25,358.67 and 10,419.17

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Solution

The fourth proportional to 18,376.40, 25,358.67 and 10,419.17 is: 14,378.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,376.40 : 25,358.67 = 10,419.17 : x
  2. Step 2: Convert to fraction form
    18,376.40/25,358.67 = 10,419.17/x
  3. Step 3: Cross multiply
    18,376.40x = 25,358.67 × 10,419.17
  4. Step 4: Simplify right side
    18,376.40x = 264,216,166.91
  5. Step 5: Solve for x
    x = 264,216,166.91/18,376.40
  6. Step 6: Final answer
    x = 14,378.01

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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.