Home / 14,012.40-19,337.25-7,638.90

Finding the Fourth Proportional to 14,012.40, 19,337.25 and 7,638.90

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Solution

The fourth proportional to 14,012.40, 19,337.25 and 7,638.90 is: 10,541.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,012.40 : 19,337.25 = 7,638.90 : x
  2. Step 2: Convert to fraction form
    14,012.40/19,337.25 = 7,638.90/x
  3. Step 3: Cross multiply
    14,012.40x = 19,337.25 × 7,638.90
  4. Step 4: Simplify right side
    14,012.40x = 147,715,319.03
  5. Step 5: Solve for x
    x = 147,715,319.03/14,012.40
  6. Step 6: Final answer
    x = 10,541.76

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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.