Home / 12,528.19-17,288.28-6,862.96

Finding the Fourth Proportional to 12,528.19, 17,288.28 and 6,862.96

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Solution

The fourth proportional to 12,528.19, 17,288.28 and 6,862.96 is: 9,470.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.19 : 17,288.28 = 6,862.96 : x
  2. Step 2: Convert to fraction form
    12,528.19/17,288.28 = 6,862.96/x
  3. Step 3: Cross multiply
    12,528.19x = 17,288.28 × 6,862.96
  4. Step 4: Simplify right side
    12,528.19x = 118,648,774.11
  5. Step 5: Solve for x
    x = 118,648,774.11/12,528.19
  6. Step 6: Final answer
    x = 9,470.54

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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.