Home / 15,605.02-21,534.96-8,531.50

Finding the Fourth Proportional to 15,605.02, 21,534.96 and 8,531.50

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Solution

The fourth proportional to 15,605.02, 21,534.96 and 8,531.50 is: 11,773.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,605.02 : 21,534.96 = 8,531.50 : x
  2. Step 2: Convert to fraction form
    15,605.02/21,534.96 = 8,531.50/x
  3. Step 3: Cross multiply
    15,605.02x = 21,534.96 × 8,531.50
  4. Step 4: Simplify right side
    15,605.02x = 183,725,511.24
  5. Step 5: Solve for x
    x = 183,725,511.24/15,605.02
  6. Step 6: Final answer
    x = 11,773.49

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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.