Home / 13,258.77-18,297.15-7,290.81

Finding the Fourth Proportional to 13,258.77, 18,297.15 and 7,290.81

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Solution

The fourth proportional to 13,258.77, 18,297.15 and 7,290.81 is: 10,061.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258.77 : 18,297.15 = 7,290.81 : x
  2. Step 2: Convert to fraction form
    13,258.77/18,297.15 = 7,290.81/x
  3. Step 3: Cross multiply
    13,258.77x = 18,297.15 × 7,290.81
  4. Step 4: Simplify right side
    13,258.77x = 133,401,007.74
  5. Step 5: Solve for x
    x = 133,401,007.74/13,258.77
  6. Step 6: Final answer
    x = 10,061.34

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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.