Home / 11,364.02-15,630.28-9,120.96

Finding the Fourth Proportional to 11,364.02, 15,630.28 and 9,120.96

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Solution

The fourth proportional to 11,364.02, 15,630.28 and 9,120.96 is: 12,545.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,364.02 : 15,630.28 = 9,120.96 : x
  2. Step 2: Convert to fraction form
    11,364.02/15,630.28 = 9,120.96/x
  3. Step 3: Cross multiply
    11,364.02x = 15,630.28 × 9,120.96
  4. Step 4: Simplify right side
    11,364.02x = 142,563,158.67
  5. Step 5: Solve for x
    x = 142,563,158.67/11,364.02
  6. Step 6: Final answer
    x = 12,545.13

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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.