Home / 25,646.89-38,457.98-12,126.80

Finding the Fourth Proportional to 25,646.89, 38,457.98 and 12,126.80

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Solution

The fourth proportional to 25,646.89, 38,457.98 and 12,126.80 is: 18,184.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,646.89 : 38,457.98 = 12,126.80 : x
  2. Step 2: Convert to fraction form
    25,646.89/38,457.98 = 12,126.80/x
  3. Step 3: Cross multiply
    25,646.89x = 38,457.98 × 12,126.80
  4. Step 4: Simplify right side
    25,646.89x = 466,371,978.94
  5. Step 5: Solve for x
    x = 466,371,978.94/25,646.89
  6. Step 6: Final answer
    x = 18,184.35

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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.