Home / 15,395.86-21,246.27-8,322.28

Finding the Fourth Proportional to 15,395.86, 21,246.27 and 8,322.28

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Solution

The fourth proportional to 15,395.86, 21,246.27 and 8,322.28 is: 11,484.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,395.86 : 21,246.27 = 8,322.28 : x
  2. Step 2: Convert to fraction form
    15,395.86/21,246.27 = 8,322.28/x
  3. Step 3: Cross multiply
    15,395.86x = 21,246.27 × 8,322.28
  4. Step 4: Simplify right side
    15,395.86x = 176,817,407.90
  5. Step 5: Solve for x
    x = 176,817,407.90/15,395.86
  6. Step 6: Final answer
    x = 11,484.74

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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.