Home / 12,587.13-18,877.77-5,563.32

Finding the Fourth Proportional to 12,587.13, 18,877.77 and 5,563.32

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Solution

The fourth proportional to 12,587.13, 18,877.77 and 5,563.32 is: 8,343.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587.13 : 18,877.77 = 5,563.32 : x
  2. Step 2: Convert to fraction form
    12,587.13/18,877.77 = 5,563.32/x
  3. Step 3: Cross multiply
    12,587.13x = 18,877.77 × 5,563.32
  4. Step 4: Simplify right side
    12,587.13x = 105,023,004.60
  5. Step 5: Solve for x
    x = 105,023,004.60/12,587.13
  6. Step 6: Final answer
    x = 8,343.68

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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.