Home / 15,339.02-21,168.05-8,624.25

Finding the Fourth Proportional to 15,339.02, 21,168.05 and 8,624.25

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Solution

The fourth proportional to 15,339.02, 21,168.05 and 8,624.25 is: 11,901.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,339.02 : 21,168.05 = 8,624.25 : x
  2. Step 2: Convert to fraction form
    15,339.02/21,168.05 = 8,624.25/x
  3. Step 3: Cross multiply
    15,339.02x = 21,168.05 × 8,624.25
  4. Step 4: Simplify right side
    15,339.02x = 182,558,512.09
  5. Step 5: Solve for x
    x = 182,558,512.09/15,339.02
  6. Step 6: Final answer
    x = 11,901.58

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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.