Home / 26,430.10-39,645.15-9,784.60

Finding the Fourth Proportional to 26,430.10, 39,645.15 and 9,784.60

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Solution

The fourth proportional to 26,430.10, 39,645.15 and 9,784.60 is: 14,676.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,430.10 : 39,645.15 = 9,784.60 : x
  2. Step 2: Convert to fraction form
    26,430.10/39,645.15 = 9,784.60/x
  3. Step 3: Cross multiply
    26,430.10x = 39,645.15 × 9,784.60
  4. Step 4: Simplify right side
    26,430.10x = 387,911,934.69
  5. Step 5: Solve for x
    x = 387,911,934.69/26,430.10
  6. Step 6: Final answer
    x = 14,676.90

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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.