Home / 15,784.40-23,676.60-9,207.20

Finding the Fourth Proportional to 15,784.40, 23,676.60 and 9,207.20

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Solution

The fourth proportional to 15,784.40, 23,676.60 and 9,207.20 is: 13,810.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,784.40 : 23,676.60 = 9,207.20 : x
  2. Step 2: Convert to fraction form
    15,784.40/23,676.60 = 9,207.20/x
  3. Step 3: Cross multiply
    15,784.40x = 23,676.60 × 9,207.20
  4. Step 4: Simplify right side
    15,784.40x = 217,995,191.52
  5. Step 5: Solve for x
    x = 217,995,191.52/15,784.40
  6. Step 6: Final answer
    x = 13,810.80

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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.