Home / 15,316.50-21,134.10-8,602.41

Finding the Fourth Proportional to 15,316.50, 21,134.10 and 8,602.41

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Solution

The fourth proportional to 15,316.50, 21,134.10 and 8,602.41 is: 11,869.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316.50 : 21,134.10 = 8,602.41 : x
  2. Step 2: Convert to fraction form
    15,316.50/21,134.10 = 8,602.41/x
  3. Step 3: Cross multiply
    15,316.50x = 21,134.10 × 8,602.41
  4. Step 4: Simplify right side
    15,316.50x = 181,804,193.18
  5. Step 5: Solve for x
    x = 181,804,193.18/15,316.50
  6. Step 6: Final answer
    x = 11,869.83

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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.