Home / 13,459.36-20,193.36-5,139.04

Finding the Fourth Proportional to 13,459.36, 20,193.36 and 5,139.04

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Solution

The fourth proportional to 13,459.36, 20,193.36 and 5,139.04 is: 7,710.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.36 : 20,193.36 = 5,139.04 : x
  2. Step 2: Convert to fraction form
    13,459.36/20,193.36 = 5,139.04/x
  3. Step 3: Cross multiply
    13,459.36x = 20,193.36 × 5,139.04
  4. Step 4: Simplify right side
    13,459.36x = 103,774,484.77
  5. Step 5: Solve for x
    x = 103,774,484.77/13,459.36
  6. Step 6: Final answer
    x = 7,710.21

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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.