Home / 16,947.57-25,430.78-7,587.21

Finding the Fourth Proportional to 16,947.57, 25,430.78 and 7,587.21

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Solution

The fourth proportional to 16,947.57, 25,430.78 and 7,587.21 is: 11,385.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,947.57 : 25,430.78 = 7,587.21 : x
  2. Step 2: Convert to fraction form
    16,947.57/25,430.78 = 7,587.21/x
  3. Step 3: Cross multiply
    16,947.57x = 25,430.78 × 7,587.21
  4. Step 4: Simplify right side
    16,947.57x = 192,948,668.32
  5. Step 5: Solve for x
    x = 192,948,668.32/16,947.57
  6. Step 6: Final answer
    x = 11,385.03

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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.