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Finding the Fourth Proportional to 10,388.79, 15,583.19 and 6,901.34

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Solution

The fourth proportional to 10,388.79, 15,583.19 and 6,901.34 is: 10,352.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,388.79 : 15,583.19 = 6,901.34 : x
  2. Step 2: Convert to fraction form
    10,388.79/15,583.19 = 6,901.34/x
  3. Step 3: Cross multiply
    10,388.79x = 15,583.19 × 6,901.34
  4. Step 4: Simplify right side
    10,388.79x = 107,544,780.05
  5. Step 5: Solve for x
    x = 107,544,780.05/10,388.79
  6. Step 6: Final answer
    x = 10,352.00

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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.