Home / 14,887.83-20,533.10-9,218.58

Finding the Fourth Proportional to 14,887.83, 20,533.10 and 9,218.58

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Solution

The fourth proportional to 14,887.83, 20,533.10 and 9,218.58 is: 12,714.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,887.83 : 20,533.10 = 9,218.58 : x
  2. Step 2: Convert to fraction form
    14,887.83/20,533.10 = 9,218.58/x
  3. Step 3: Cross multiply
    14,887.83x = 20,533.10 × 9,218.58
  4. Step 4: Simplify right side
    14,887.83x = 189,285,901.91
  5. Step 5: Solve for x
    x = 189,285,901.91/14,887.83
  6. Step 6: Final answer
    x = 12,714.13

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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.