Home / 12,340.49-18,510.72-3,575.40

Finding the Fourth Proportional to 12,340.49, 18,510.72 and 3,575.40

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Solution

The fourth proportional to 12,340.49, 18,510.72 and 3,575.40 is: 5,363.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.49 : 18,510.72 = 3,575.40 : x
  2. Step 2: Convert to fraction form
    12,340.49/18,510.72 = 3,575.40/x
  3. Step 3: Cross multiply
    12,340.49x = 18,510.72 × 3,575.40
  4. Step 4: Simplify right side
    12,340.49x = 66,183,228.29
  5. Step 5: Solve for x
    x = 66,183,228.29/12,340.49
  6. Step 6: Final answer
    x = 5,363.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.