Home / 13,725.42-18,941.18-7,437.80

Finding the Fourth Proportional to 13,725.42, 18,941.18 and 7,437.80

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Solution

The fourth proportional to 13,725.42, 18,941.18 and 7,437.80 is: 10,264.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.42 : 18,941.18 = 7,437.80 : x
  2. Step 2: Convert to fraction form
    13,725.42/18,941.18 = 7,437.80/x
  3. Step 3: Cross multiply
    13,725.42x = 18,941.18 × 7,437.80
  4. Step 4: Simplify right side
    13,725.42x = 140,880,576.71
  5. Step 5: Solve for x
    x = 140,880,576.71/13,725.42
  6. Step 6: Final answer
    x = 10,264.21

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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.