Home / 15,639.77-21,582.06-8,566.04

Finding the Fourth Proportional to 15,639.77, 21,582.06 and 8,566.04

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Solution

The fourth proportional to 15,639.77, 21,582.06 and 8,566.04 is: 11,820.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,639.77 : 21,582.06 = 8,566.04 : x
  2. Step 2: Convert to fraction form
    15,639.77/21,582.06 = 8,566.04/x
  3. Step 3: Cross multiply
    15,639.77x = 21,582.06 × 8,566.04
  4. Step 4: Simplify right side
    15,639.77x = 184,872,681.33
  5. Step 5: Solve for x
    x = 184,872,681.33/15,639.77
  6. Step 6: Final answer
    x = 11,820.68

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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.