Home / 13,953.55-19,259.22-7,988.67

Finding the Fourth Proportional to 13,953.55, 19,259.22 and 7,988.67

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Solution

The fourth proportional to 13,953.55, 19,259.22 and 7,988.67 is: 11,026.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.55 : 19,259.22 = 7,988.67 : x
  2. Step 2: Convert to fraction form
    13,953.55/19,259.22 = 7,988.67/x
  3. Step 3: Cross multiply
    13,953.55x = 19,259.22 × 7,988.67
  4. Step 4: Simplify right side
    13,953.55x = 153,855,553.04
  5. Step 5: Solve for x
    x = 153,855,553.04/13,953.55
  6. Step 6: Final answer
    x = 11,026.27

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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.