Home / 14,281.47-19,708.56-7,907.90

Finding the Fourth Proportional to 14,281.47, 19,708.56 and 7,907.90

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Solution

The fourth proportional to 14,281.47, 19,708.56 and 7,907.90 is: 10,912.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,281.47 : 19,708.56 = 7,907.90 : x
  2. Step 2: Convert to fraction form
    14,281.47/19,708.56 = 7,907.90/x
  3. Step 3: Cross multiply
    14,281.47x = 19,708.56 × 7,907.90
  4. Step 4: Simplify right side
    14,281.47x = 155,853,223.08
  5. Step 5: Solve for x
    x = 155,853,223.08/14,281.47
  6. Step 6: Final answer
    x = 10,912.97

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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.