Home / 15,590.32-21,513.60-8,516.72

Finding the Fourth Proportional to 15,590.32, 21,513.60 and 8,516.72

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Solution

The fourth proportional to 15,590.32, 21,513.60 and 8,516.72 is: 11,752.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,590.32 : 21,513.60 = 8,516.72 : x
  2. Step 2: Convert to fraction form
    15,590.32/21,513.60 = 8,516.72/x
  3. Step 3: Cross multiply
    15,590.32x = 21,513.60 × 8,516.72
  4. Step 4: Simplify right side
    15,590.32x = 183,225,307.39
  5. Step 5: Solve for x
    x = 183,225,307.39/15,590.32
  6. Step 6: Final answer
    x = 11,752.50

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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.