Home / 12,947.50-19,433.40-5,931.28

Finding the Fourth Proportional to 12,947.50, 19,433.40 and 5,931.28

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Solution

The fourth proportional to 12,947.50, 19,433.40 and 5,931.28 is: 8,902.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947.50 : 19,433.40 = 5,931.28 : x
  2. Step 2: Convert to fraction form
    12,947.50/19,433.40 = 5,931.28/x
  3. Step 3: Cross multiply
    12,947.50x = 19,433.40 × 5,931.28
  4. Step 4: Simplify right side
    12,947.50x = 115,264,936.75
  5. Step 5: Solve for x
    x = 115,264,936.75/12,947.50
  6. Step 6: Final answer
    x = 8,902.49

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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.