Home / 14,281.40-19,707.16-7,907.88

Finding the Fourth Proportional to 14,281.40, 19,707.16 and 7,907.88

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Solution

The fourth proportional to 14,281.40, 19,707.16 and 7,907.88 is: 10,912.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,281.40 : 19,707.16 = 7,907.88 : x
  2. Step 2: Convert to fraction form
    14,281.40/19,707.16 = 7,907.88/x
  3. Step 3: Cross multiply
    14,281.40x = 19,707.16 × 7,907.88
  4. Step 4: Simplify right side
    14,281.40x = 155,841,856.42
  5. Step 5: Solve for x
    x = 155,841,856.42/14,281.40
  6. Step 6: Final answer
    x = 10,912.23

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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.