Home / 15,562.07-21,475.81-8,488.64

Finding the Fourth Proportional to 15,562.07, 21,475.81 and 8,488.64

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Solution

The fourth proportional to 15,562.07, 21,475.81 and 8,488.64 is: 11,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,562.07 : 21,475.81 = 8,488.64 : x
  2. Step 2: Convert to fraction form
    15,562.07/21,475.81 = 8,488.64/x
  3. Step 3: Cross multiply
    15,562.07x = 21,475.81 × 8,488.64
  4. Step 4: Simplify right side
    15,562.07x = 182,300,269.98
  5. Step 5: Solve for x
    x = 182,300,269.98/15,562.07
  6. Step 6: Final answer
    x = 11,714.40

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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.