Home / 14,423.10-19,895.67-9,120.30

Finding the Fourth Proportional to 14,423.10, 19,895.67 and 9,120.30

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Solution

The fourth proportional to 14,423.10, 19,895.67 and 9,120.30 is: 12,580.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,423.10 : 19,895.67 = 9,120.30 : x
  2. Step 2: Convert to fraction form
    14,423.10/19,895.67 = 9,120.30/x
  3. Step 3: Cross multiply
    14,423.10x = 19,895.67 × 9,120.30
  4. Step 4: Simplify right side
    14,423.10x = 181,454,479.10
  5. Step 5: Solve for x
    x = 181,454,479.10/14,423.10
  6. Step 6: Final answer
    x = 12,580.82

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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.