Home / 15,804.86-21,829.10-10,490.45

Finding the Fourth Proportional to 15,804.86, 21,829.10 and 10,490.45

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Solution

The fourth proportional to 15,804.86, 21,829.10 and 10,490.45 is: 14,489.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,804.86 : 21,829.10 = 10,490.45 : x
  2. Step 2: Convert to fraction form
    15,804.86/21,829.10 = 10,490.45/x
  3. Step 3: Cross multiply
    15,804.86x = 21,829.10 × 10,490.45
  4. Step 4: Simplify right side
    15,804.86x = 228,996,920.50
  5. Step 5: Solve for x
    x = 228,996,920.50/15,804.86
  6. Step 6: Final answer
    x = 14,489.02

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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.