Home / 18,315.74-25,276.30-10,357.81

Finding the Fourth Proportional to 18,315.74, 25,276.30 and 10,357.81

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Solution

The fourth proportional to 18,315.74, 25,276.30 and 10,357.81 is: 14,294.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.74 : 25,276.30 = 10,357.81 : x
  2. Step 2: Convert to fraction form
    18,315.74/25,276.30 = 10,357.81/x
  3. Step 3: Cross multiply
    18,315.74x = 25,276.30 × 10,357.81
  4. Step 4: Simplify right side
    18,315.74x = 261,807,023.82
  5. Step 5: Solve for x
    x = 261,807,023.82/18,315.74
  6. Step 6: Final answer
    x = 14,294.10

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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.