Home / 14,890.35-20,547.17-8,921.87

Finding the Fourth Proportional to 14,890.35, 20,547.17 and 8,921.87

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Solution

The fourth proportional to 14,890.35, 20,547.17 and 8,921.87 is: 12,311.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,890.35 : 20,547.17 = 8,921.87 : x
  2. Step 2: Convert to fraction form
    14,890.35/20,547.17 = 8,921.87/x
  3. Step 3: Cross multiply
    14,890.35x = 20,547.17 × 8,921.87
  4. Step 4: Simplify right side
    14,890.35x = 183,319,142.77
  5. Step 5: Solve for x
    x = 183,319,142.77/14,890.35
  6. Step 6: Final answer
    x = 12,311.27

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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.