Home / 15,586,853.69-21,509,804.24-8,711,335.76

Finding the Fourth Proportional to 15,586,853.69, 21,509,804.24 and 8,711,335.76

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Solution

The fourth proportional to 15,586,853.69, 21,509,804.24 and 8,711,335.76 is: 12,021,613.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,586,853.69 : 21,509,804.24 = 8,711,335.76 : x
  2. Step 2: Convert to fraction form
    15,586,853.69/21,509,804.24 = 8,711,335.76/x
  3. Step 3: Cross multiply
    15,586,853.69x = 21,509,804.24 × 8,711,335.76
  4. Step 4: Simplify right side
    15,586,853.69x = 187,379,126,748,073.44
  5. Step 5: Solve for x
    x = 187,379,126,748,073.44/15,586,853.69
  6. Step 6: Final answer
    x = 12,021,613.24

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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.