Home / 10,140.14-15,210.20-7,384.34

Finding the Fourth Proportional to 10,140.14, 15,210.20 and 7,384.34

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Solution

The fourth proportional to 10,140.14, 15,210.20 and 7,384.34 is: 11,076.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.14 : 15,210.20 = 7,384.34 : x
  2. Step 2: Convert to fraction form
    10,140.14/15,210.20 = 7,384.34/x
  3. Step 3: Cross multiply
    10,140.14x = 15,210.20 × 7,384.34
  4. Step 4: Simplify right side
    10,140.14x = 112,317,251.35
  5. Step 5: Solve for x
    x = 112,317,251.35/10,140.14
  6. Step 6: Final answer
    x = 11,076.50

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.