Home / 12,320.28-17,000.01-7,015.23

Finding the Fourth Proportional to 12,320.28, 17,000.01 and 7,015.23

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Solution

The fourth proportional to 12,320.28, 17,000.01 and 7,015.23 is: 9,679.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320.28 : 17,000.01 = 7,015.23 : x
  2. Step 2: Convert to fraction form
    12,320.28/17,000.01 = 7,015.23/x
  3. Step 3: Cross multiply
    12,320.28x = 17,000.01 × 7,015.23
  4. Step 4: Simplify right side
    12,320.28x = 119,258,980.15
  5. Step 5: Solve for x
    x = 119,258,980.15/12,320.28
  6. Step 6: Final answer
    x = 9,679.89

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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.