Home / 15,550.02-21,459-8,476.44

Finding the Fourth Proportional to 15,550.02, 21,459 and 8,476.44

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Solution

The fourth proportional to 15,550.02, 21,459 and 8,476.44 is: 11,697.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,550.02 : 21,459 = 8,476.44 : x
  2. Step 2: Convert to fraction form
    15,550.02/21,459 = 8,476.44/x
  3. Step 3: Cross multiply
    15,550.02x = 21,459 × 8,476.44
  4. Step 4: Simplify right side
    15,550.02x = 181,895,925.96
  5. Step 5: Solve for x
    x = 181,895,925.96/15,550.02
  6. Step 6: Final answer
    x = 11,697.47

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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.