Home / 14,122.40-19,488.08-8,073.30

Finding the Fourth Proportional to 14,122.40, 19,488.08 and 8,073.30

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Solution

The fourth proportional to 14,122.40, 19,488.08 and 8,073.30 is: 11,140.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.40 : 19,488.08 = 8,073.30 : x
  2. Step 2: Convert to fraction form
    14,122.40/19,488.08 = 8,073.30/x
  3. Step 3: Cross multiply
    14,122.40x = 19,488.08 × 8,073.30
  4. Step 4: Simplify right side
    14,122.40x = 157,333,054.49
  5. Step 5: Solve for x
    x = 157,333,054.49/14,122.40
  6. Step 6: Final answer
    x = 11,140.67

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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.