Home / 13,301.40-19,969.10-8,391.58

Finding the Fourth Proportional to 13,301.40, 19,969.10 and 8,391.58

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Solution

The fourth proportional to 13,301.40, 19,969.10 and 8,391.58 is: 12,598.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,301.40 : 19,969.10 = 8,391.58 : x
  2. Step 2: Convert to fraction form
    13,301.40/19,969.10 = 8,391.58/x
  3. Step 3: Cross multiply
    13,301.40x = 19,969.10 × 8,391.58
  4. Step 4: Simplify right side
    13,301.40x = 167,572,300.18
  5. Step 5: Solve for x
    x = 167,572,300.18/13,301.40
  6. Step 6: Final answer
    x = 12,598.09

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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.