Home / 12,355.95-18,534.15-4,459.05

Finding the Fourth Proportional to 12,355.95, 18,534.15 and 4,459.05

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Solution

The fourth proportional to 12,355.95, 18,534.15 and 4,459.05 is: 6,688.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355.95 : 18,534.15 = 4,459.05 : x
  2. Step 2: Convert to fraction form
    12,355.95/18,534.15 = 4,459.05/x
  3. Step 3: Cross multiply
    12,355.95x = 18,534.15 × 4,459.05
  4. Step 4: Simplify right side
    12,355.95x = 82,644,679.26
  5. Step 5: Solve for x
    x = 82,644,679.26/12,355.95
  6. Step 6: Final answer
    x = 6,688.66

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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.