Home / 14,225.40-19,640.29-12,730.74

Finding the Fourth Proportional to 14,225.40, 19,640.29 and 12,730.74

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Solution

The fourth proportional to 14,225.40, 19,640.29 and 12,730.74 is: 17,576.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,225.40 : 19,640.29 = 12,730.74 : x
  2. Step 2: Convert to fraction form
    14,225.40/19,640.29 = 12,730.74/x
  3. Step 3: Cross multiply
    14,225.40x = 19,640.29 × 12,730.74
  4. Step 4: Simplify right side
    14,225.40x = 250,035,506.44
  5. Step 5: Solve for x
    x = 250,035,506.44/14,225.40
  6. Step 6: Final answer
    x = 17,576.70

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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.