Home / 14,889.17-20,545.54-8,920.69

Finding the Fourth Proportional to 14,889.17, 20,545.54 and 8,920.69

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Solution

The fourth proportional to 14,889.17, 20,545.54 and 8,920.69 is: 12,309.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,889.17 : 20,545.54 = 8,920.69 : x
  2. Step 2: Convert to fraction form
    14,889.17/20,545.54 = 8,920.69/x
  3. Step 3: Cross multiply
    14,889.17x = 20,545.54 × 8,920.69
  4. Step 4: Simplify right side
    14,889.17x = 183,280,393.22
  5. Step 5: Solve for x
    x = 183,280,393.22/14,889.17
  6. Step 6: Final answer
    x = 12,309.64

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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.