Home / 15,408.41-21,263.61-8,695.46

Finding the Fourth Proportional to 15,408.41, 21,263.61 and 8,695.46

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Solution

The fourth proportional to 15,408.41, 21,263.61 and 8,695.46 is: 11,999.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,408.41 : 21,263.61 = 8,695.46 : x
  2. Step 2: Convert to fraction form
    15,408.41/21,263.61 = 8,695.46/x
  3. Step 3: Cross multiply
    15,408.41x = 21,263.61 × 8,695.46
  4. Step 4: Simplify right side
    15,408.41x = 184,896,870.21
  5. Step 5: Solve for x
    x = 184,896,870.21/15,408.41
  6. Step 6: Final answer
    x = 11,999.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.