Home / 13,897.39-19,178.20-7,609.76

Finding the Fourth Proportional to 13,897.39, 19,178.20 and 7,609.76

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Solution

The fourth proportional to 13,897.39, 19,178.20 and 7,609.76 is: 10,501.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,897.39 : 19,178.20 = 7,609.76 : x
  2. Step 2: Convert to fraction form
    13,897.39/19,178.20 = 7,609.76/x
  3. Step 3: Cross multiply
    13,897.39x = 19,178.20 × 7,609.76
  4. Step 4: Simplify right side
    13,897.39x = 145,941,461.18
  5. Step 5: Solve for x
    x = 145,941,461.18/13,897.39
  6. Step 6: Final answer
    x = 10,501.36

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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.