Home / 15,011.48-20,693.04-9,966.80

Finding the Fourth Proportional to 15,011.48, 20,693.04 and 9,966.80

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Solution

The fourth proportional to 15,011.48, 20,693.04 and 9,966.80 is: 13,739.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,011.48 : 20,693.04 = 9,966.80 : x
  2. Step 2: Convert to fraction form
    15,011.48/20,693.04 = 9,966.80/x
  3. Step 3: Cross multiply
    15,011.48x = 20,693.04 × 9,966.80
  4. Step 4: Simplify right side
    15,011.48x = 206,243,391.07
  5. Step 5: Solve for x
    x = 206,243,391.07/15,011.48
  6. Step 6: Final answer
    x = 13,739.04

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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.