Home / 18,272.79-25,215.93-10,315.76

Finding the Fourth Proportional to 18,272.79, 25,215.93 and 10,315.76

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Solution

The fourth proportional to 18,272.79, 25,215.93 and 10,315.76 is: 14,235.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,272.79 : 25,215.93 = 10,315.76 : x
  2. Step 2: Convert to fraction form
    18,272.79/25,215.93 = 10,315.76/x
  3. Step 3: Cross multiply
    18,272.79x = 25,215.93 × 10,315.76
  4. Step 4: Simplify right side
    18,272.79x = 260,121,355.98
  5. Step 5: Solve for x
    x = 260,121,355.98/18,272.79
  6. Step 6: Final answer
    x = 14,235.45

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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.