Home / 14,328.96-19,782.72-11,356.80

Finding the Fourth Proportional to 14,328.96, 19,782.72 and 11,356.80

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Solution

The fourth proportional to 14,328.96, 19,782.72 and 11,356.80 is: 15,679.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,328.96 : 19,782.72 = 11,356.80 : x
  2. Step 2: Convert to fraction form
    14,328.96/19,782.72 = 11,356.80/x
  3. Step 3: Cross multiply
    14,328.96x = 19,782.72 × 11,356.80
  4. Step 4: Simplify right side
    14,328.96x = 224,668,394.50
  5. Step 5: Solve for x
    x = 224,668,394.50/14,328.96
  6. Step 6: Final answer
    x = 15,679.32

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.