Home / 18,342.90-25,313.18-10,384.65

Finding the Fourth Proportional to 18,342.90, 25,313.18 and 10,384.65

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Solution

The fourth proportional to 18,342.90, 25,313.18 and 10,384.65 is: 14,330.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.90 : 25,313.18 = 10,384.65 : x
  2. Step 2: Convert to fraction form
    18,342.90/25,313.18 = 10,384.65/x
  3. Step 3: Cross multiply
    18,342.90x = 25,313.18 × 10,384.65
  4. Step 4: Simplify right side
    18,342.90x = 262,868,462.76
  5. Step 5: Solve for x
    x = 262,868,462.76/18,342.90
  6. Step 6: Final answer
    x = 14,330.80

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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.