Home / 13,277.60-18,328.76-9,451.72

Finding the Fourth Proportional to 13,277.60, 18,328.76 and 9,451.72

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Solution

The fourth proportional to 13,277.60, 18,328.76 and 9,451.72 is: 13,047.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.60 : 18,328.76 = 9,451.72 : x
  2. Step 2: Convert to fraction form
    13,277.60/18,328.76 = 9,451.72/x
  3. Step 3: Cross multiply
    13,277.60x = 18,328.76 × 9,451.72
  4. Step 4: Simplify right side
    13,277.60x = 173,238,307.47
  5. Step 5: Solve for x
    x = 173,238,307.47/13,277.60
  6. Step 6: Final answer
    x = 13,047.41

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Half scale
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Double scale
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Similar ratio
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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.