Home / 15,295.10-21,108.08-8,582.86

Finding the Fourth Proportional to 15,295.10, 21,108.08 and 8,582.86

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Solution

The fourth proportional to 15,295.10, 21,108.08 and 8,582.86 is: 11,844.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,295.10 : 21,108.08 = 8,582.86 : x
  2. Step 2: Convert to fraction form
    15,295.10/21,108.08 = 8,582.86/x
  3. Step 3: Cross multiply
    15,295.10x = 21,108.08 × 8,582.86
  4. Step 4: Simplify right side
    15,295.10x = 181,167,695.51
  5. Step 5: Solve for x
    x = 181,167,695.51/15,295.10
  6. Step 6: Final answer
    x = 11,844.82

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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.