Home / 10,276.86-15,415.29-6,580.83

Finding the Fourth Proportional to 10,276.86, 15,415.29 and 6,580.83

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Solution

The fourth proportional to 10,276.86, 15,415.29 and 6,580.83 is: 9,871.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,276.86 : 15,415.29 = 6,580.83 : x
  2. Step 2: Convert to fraction form
    10,276.86/15,415.29 = 6,580.83/x
  3. Step 3: Cross multiply
    10,276.86x = 15,415.29 × 6,580.83
  4. Step 4: Simplify right side
    10,276.86x = 101,445,402.89
  5. Step 5: Solve for x
    x = 101,445,402.89/10,276.86
  6. Step 6: Final answer
    x = 9,871.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.