Home / 10,947.40-16,388.70-7,253.80

Finding the Fourth Proportional to 10,947.40, 16,388.70 and 7,253.80

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Solution

The fourth proportional to 10,947.40, 16,388.70 and 7,253.80 is: 10,859.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,947.40 : 16,388.70 = 7,253.80 : x
  2. Step 2: Convert to fraction form
    10,947.40/16,388.70 = 7,253.80/x
  3. Step 3: Cross multiply
    10,947.40x = 16,388.70 × 7,253.80
  4. Step 4: Simplify right side
    10,947.40x = 118,880,352.06
  5. Step 5: Solve for x
    x = 118,880,352.06/10,947.40
  6. Step 6: Final answer
    x = 10,859.23

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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.