Home / 11,030.85-15,225.98-6,783.21

Finding the Fourth Proportional to 11,030.85, 15,225.98 and 6,783.21

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Solution

The fourth proportional to 11,030.85, 15,225.98 and 6,783.21 is: 9,362.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,030.85 : 15,225.98 = 6,783.21 : x
  2. Step 2: Convert to fraction form
    11,030.85/15,225.98 = 6,783.21/x
  3. Step 3: Cross multiply
    11,030.85x = 15,225.98 × 6,783.21
  4. Step 4: Simplify right side
    11,030.85x = 103,280,985.88
  5. Step 5: Solve for x
    x = 103,280,985.88/11,030.85
  6. Step 6: Final answer
    x = 9,362.92

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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.