Home / 15,423.60-23,135.40-7,647.60

Finding the Fourth Proportional to 15,423.60, 23,135.40 and 7,647.60

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Solution

The fourth proportional to 15,423.60, 23,135.40 and 7,647.60 is: 11,471.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,423.60 : 23,135.40 = 7,647.60 : x
  2. Step 2: Convert to fraction form
    15,423.60/23,135.40 = 7,647.60/x
  3. Step 3: Cross multiply
    15,423.60x = 23,135.40 × 7,647.60
  4. Step 4: Simplify right side
    15,423.60x = 176,930,285.04
  5. Step 5: Solve for x
    x = 176,930,285.04/15,423.60
  6. Step 6: Final answer
    x = 11,471.40

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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.