Home / 15,772.10-21,757.89-9,810.74

Finding the Fourth Proportional to 15,772.10, 21,757.89 and 9,810.74

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Solution

The fourth proportional to 15,772.10, 21,757.89 and 9,810.74 is: 13,534.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,772.10 : 21,757.89 = 9,810.74 : x
  2. Step 2: Convert to fraction form
    15,772.10/21,757.89 = 9,810.74/x
  3. Step 3: Cross multiply
    15,772.10x = 21,757.89 × 9,810.74
  4. Step 4: Simplify right side
    15,772.10x = 213,461,001.74
  5. Step 5: Solve for x
    x = 213,461,001.74/15,772.10
  6. Step 6: Final answer
    x = 13,534.09

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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.