Home / 12,521.81-17,281.67-7,486.04

Finding the Fourth Proportional to 12,521.81, 17,281.67 and 7,486.04

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Solution

The fourth proportional to 12,521.81, 17,281.67 and 7,486.04 is: 10,331.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.81 : 17,281.67 = 7,486.04 : x
  2. Step 2: Convert to fraction form
    12,521.81/17,281.67 = 7,486.04/x
  3. Step 3: Cross multiply
    12,521.81x = 17,281.67 × 7,486.04
  4. Step 4: Simplify right side
    12,521.81x = 129,371,149.05
  5. Step 5: Solve for x
    x = 129,371,149.05/12,521.81
  6. Step 6: Final answer
    x = 10,331.67

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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.