Home / 10,265.21-15,398.80-4,720.10

Finding the Fourth Proportional to 10,265.21, 15,398.80 and 4,720.10

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Solution

The fourth proportional to 10,265.21, 15,398.80 and 4,720.10 is: 7,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,265.21 : 15,398.80 = 4,720.10 : x
  2. Step 2: Convert to fraction form
    10,265.21/15,398.80 = 4,720.10/x
  3. Step 3: Cross multiply
    10,265.21x = 15,398.80 × 4,720.10
  4. Step 4: Simplify right side
    10,265.21x = 72,683,787.09
  5. Step 5: Solve for x
    x = 72,683,787.09/10,265.21
  6. Step 6: Final answer
    x = 7,080.60

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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.