Home / 15,633.32-21,576.03-8,917.40

Finding the Fourth Proportional to 15,633.32, 21,576.03 and 8,917.40

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Solution

The fourth proportional to 15,633.32, 21,576.03 and 8,917.40 is: 12,307.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,633.32 : 21,576.03 = 8,917.40 : x
  2. Step 2: Convert to fraction form
    15,633.32/21,576.03 = 8,917.40/x
  3. Step 3: Cross multiply
    15,633.32x = 21,576.03 × 8,917.40
  4. Step 4: Simplify right side
    15,633.32x = 192,402,089.92
  5. Step 5: Solve for x
    x = 192,402,089.92/15,633.32
  6. Step 6: Final answer
    x = 12,307.18

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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.