Home / 12,947.93-19,334.07-10,285.55

Finding the Fourth Proportional to 12,947.93, 19,334.07 and 10,285.55

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Solution

The fourth proportional to 12,947.93, 19,334.07 and 10,285.55 is: 15,358.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947.93 : 19,334.07 = 10,285.55 : x
  2. Step 2: Convert to fraction form
    12,947.93/19,334.07 = 10,285.55/x
  3. Step 3: Cross multiply
    12,947.93x = 19,334.07 × 10,285.55
  4. Step 4: Simplify right side
    12,947.93x = 198,861,492.26
  5. Step 5: Solve for x
    x = 198,861,492.26/12,947.93
  6. Step 6: Final answer
    x = 15,358.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.