Home / 26,316.20-39,477.90-8,784.20

Finding the Fourth Proportional to 26,316.20, 39,477.90 and 8,784.20

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Solution

The fourth proportional to 26,316.20, 39,477.90 and 8,784.20 is: 13,177.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,316.20 : 39,477.90 = 8,784.20 : x
  2. Step 2: Convert to fraction form
    26,316.20/39,477.90 = 8,784.20/x
  3. Step 3: Cross multiply
    26,316.20x = 39,477.90 × 8,784.20
  4. Step 4: Simplify right side
    26,316.20x = 346,781,769.18
  5. Step 5: Solve for x
    x = 346,781,769.18/26,316.20
  6. Step 6: Final answer
    x = 13,177.50

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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.