Home / 15,869.86-21,885.30-9,495.43

Finding the Fourth Proportional to 15,869.86, 21,885.30 and 9,495.43

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Solution

The fourth proportional to 15,869.86, 21,885.30 and 9,495.43 is: 13,094.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,869.86 : 21,885.30 = 9,495.43 : x
  2. Step 2: Convert to fraction form
    15,869.86/21,885.30 = 9,495.43/x
  3. Step 3: Cross multiply
    15,869.86x = 21,885.30 × 9,495.43
  4. Step 4: Simplify right side
    15,869.86x = 207,810,334.18
  5. Step 5: Solve for x
    x = 207,810,334.18/15,869.86
  6. Step 6: Final answer
    x = 13,094.65

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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.