Home / 15,298.17-21,111.80-8,584.28

Finding the Fourth Proportional to 15,298.17, 21,111.80 and 8,584.28

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Solution

The fourth proportional to 15,298.17, 21,111.80 and 8,584.28 is: 11,846.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,298.17 : 21,111.80 = 8,584.28 : x
  2. Step 2: Convert to fraction form
    15,298.17/21,111.80 = 8,584.28/x
  3. Step 3: Cross multiply
    15,298.17x = 21,111.80 × 8,584.28
  4. Step 4: Simplify right side
    15,298.17x = 181,229,602.50
  5. Step 5: Solve for x
    x = 181,229,602.50/15,298.17
  6. Step 6: Final answer
    x = 11,846.49

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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.