Home / 19,301.40-28,947.24-7,614.72

Finding the Fourth Proportional to 19,301.40, 28,947.24 and 7,614.72

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Solution

The fourth proportional to 19,301.40, 28,947.24 and 7,614.72 is: 11,420.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,301.40 : 28,947.24 = 7,614.72 : x
  2. Step 2: Convert to fraction form
    19,301.40/28,947.24 = 7,614.72/x
  3. Step 3: Cross multiply
    19,301.40x = 28,947.24 × 7,614.72
  4. Step 4: Simplify right side
    19,301.40x = 220,425,127.37
  5. Step 5: Solve for x
    x = 220,425,127.37/19,301.40
  6. Step 6: Final answer
    x = 11,420.16

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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.