Home / 18,276.47-25,222.70-10,315.79

Finding the Fourth Proportional to 18,276.47, 25,222.70 and 10,315.79

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Solution

The fourth proportional to 18,276.47, 25,222.70 and 10,315.79 is: 14,236.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.47 : 25,222.70 = 10,315.79 : x
  2. Step 2: Convert to fraction form
    18,276.47/25,222.70 = 10,315.79/x
  3. Step 3: Cross multiply
    18,276.47x = 25,222.70 × 10,315.79
  4. Step 4: Simplify right side
    18,276.47x = 260,192,024.85
  5. Step 5: Solve for x
    x = 260,192,024.85/18,276.47
  6. Step 6: Final answer
    x = 14,236.45

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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.