Home / 10,714.08-14,789.32-8,721.18

Finding the Fourth Proportional to 10,714.08, 14,789.32 and 8,721.18

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Solution

The fourth proportional to 10,714.08, 14,789.32 and 8,721.18 is: 12,038.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,714.08 : 14,789.32 = 8,721.18 : x
  2. Step 2: Convert to fraction form
    10,714.08/14,789.32 = 8,721.18/x
  3. Step 3: Cross multiply
    10,714.08x = 14,789.32 × 8,721.18
  4. Step 4: Simplify right side
    10,714.08x = 128,980,299.99
  5. Step 5: Solve for x
    x = 128,980,299.99/10,714.08
  6. Step 6: Final answer
    x = 12,038.39

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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.