Home / 11,267.50-15,539.04-9,385.32

Finding the Fourth Proportional to 11,267.50, 15,539.04 and 9,385.32

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Solution

The fourth proportional to 11,267.50, 15,539.04 and 9,385.32 is: 12,943.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,267.50 : 15,539.04 = 9,385.32 : x
  2. Step 2: Convert to fraction form
    11,267.50/15,539.04 = 9,385.32/x
  3. Step 3: Cross multiply
    11,267.50x = 15,539.04 × 9,385.32
  4. Step 4: Simplify right side
    11,267.50x = 145,838,862.89
  5. Step 5: Solve for x
    x = 145,838,862.89/11,267.50
  6. Step 6: Final answer
    x = 12,943.32

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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.