Home / 8,669.56-13,005.02-3,123.47

Finding the Fourth Proportional to 8,669.56, 13,005.02 and 3,123.47

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Solution

The fourth proportional to 8,669.56, 13,005.02 and 3,123.47 is: 4,685.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,669.56 : 13,005.02 = 3,123.47 : x
  2. Step 2: Convert to fraction form
    8,669.56/13,005.02 = 3,123.47/x
  3. Step 3: Cross multiply
    8,669.56x = 13,005.02 × 3,123.47
  4. Step 4: Simplify right side
    8,669.56x = 40,620,774.20
  5. Step 5: Solve for x
    x = 40,620,774.20/8,669.56
  6. Step 6: Final answer
    x = 4,685.45

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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.