Home / 14,423.19-19,903.95-8,135.57

Finding the Fourth Proportional to 14,423.19, 19,903.95 and 8,135.57

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Solution

The fourth proportional to 14,423.19, 19,903.95 and 8,135.57 is: 11,227.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,423.19 : 19,903.95 = 8,135.57 : x
  2. Step 2: Convert to fraction form
    14,423.19/19,903.95 = 8,135.57/x
  3. Step 3: Cross multiply
    14,423.19x = 19,903.95 × 8,135.57
  4. Step 4: Simplify right side
    14,423.19x = 161,929,878.98
  5. Step 5: Solve for x
    x = 161,929,878.98/14,423.19
  6. Step 6: Final answer
    x = 11,227.05

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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.