Home / 15,384.39-21,230.67-9,096.76

Finding the Fourth Proportional to 15,384.39, 21,230.67 and 9,096.76

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Solution

The fourth proportional to 15,384.39, 21,230.67 and 9,096.76 is: 12,553.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,384.39 : 21,230.67 = 9,096.76 : x
  2. Step 2: Convert to fraction form
    15,384.39/21,230.67 = 9,096.76/x
  3. Step 3: Cross multiply
    15,384.39x = 21,230.67 × 9,096.76
  4. Step 4: Simplify right side
    15,384.39x = 193,130,309.63
  5. Step 5: Solve for x
    x = 193,130,309.63/15,384.39
  6. Step 6: Final answer
    x = 12,553.65

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Half scale
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Double scale
Find fourth proportional to 15,385.39, 21,232.05 and 9,097.76
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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.