Home / 13,258.76-18,297.15-7,290.81

Finding the Fourth Proportional to 13,258.76, 18,297.15 and 7,290.81

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Solution

The fourth proportional to 13,258.76, 18,297.15 and 7,290.81 is: 10,061.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258.76 : 18,297.15 = 7,290.81 : x
  2. Step 2: Convert to fraction form
    13,258.76/18,297.15 = 7,290.81/x
  3. Step 3: Cross multiply
    13,258.76x = 18,297.15 × 7,290.81
  4. Step 4: Simplify right side
    13,258.76x = 133,401,044.19
  5. Step 5: Solve for x
    x = 133,401,044.19/13,258.76
  6. Step 6: Final answer
    x = 10,061.35

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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.