Home / 15,590.16-21,514.08-8,516.40

Finding the Fourth Proportional to 15,590.16, 21,514.08 and 8,516.40

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Solution

The fourth proportional to 15,590.16, 21,514.08 and 8,516.40 is: 11,752.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,590.16 : 21,514.08 = 8,516.40 : x
  2. Step 2: Convert to fraction form
    15,590.16/21,514.08 = 8,516.40/x
  3. Step 3: Cross multiply
    15,590.16x = 21,514.08 × 8,516.40
  4. Step 4: Simplify right side
    15,590.16x = 183,222,510.91
  5. Step 5: Solve for x
    x = 183,222,510.91/15,590.16
  6. Step 6: Final answer
    x = 11,752.45

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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.