Home / 15,140.40-22,710.60-11,856.30

Finding the Fourth Proportional to 15,140.40, 22,710.60 and 11,856.30

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Solution

The fourth proportional to 15,140.40, 22,710.60 and 11,856.30 is: 17,784.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,140.40 : 22,710.60 = 11,856.30 : x
  2. Step 2: Convert to fraction form
    15,140.40/22,710.60 = 11,856.30/x
  3. Step 3: Cross multiply
    15,140.40x = 22,710.60 × 11,856.30
  4. Step 4: Simplify right side
    15,140.40x = 269,263,686.78
  5. Step 5: Solve for x
    x = 269,263,686.78/15,140.40
  6. Step 6: Final answer
    x = 17,784.45

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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.