Home / 13,007.48-17,938.40-8,693.04

Finding the Fourth Proportional to 13,007.48, 17,938.40 and 8,693.04

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Solution

The fourth proportional to 13,007.48, 17,938.40 and 8,693.04 is: 11,988.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,007.48 : 17,938.40 = 8,693.04 : x
  2. Step 2: Convert to fraction form
    13,007.48/17,938.40 = 8,693.04/x
  3. Step 3: Cross multiply
    13,007.48x = 17,938.40 × 8,693.04
  4. Step 4: Simplify right side
    13,007.48x = 155,939,228.74
  5. Step 5: Solve for x
    x = 155,939,228.74/13,007.48
  6. Step 6: Final answer
    x = 11,988.43

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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.