Home / 10,621.35-14,656.28-5,905.35

Finding the Fourth Proportional to 10,621.35, 14,656.28 and 5,905.35

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Solution

The fourth proportional to 10,621.35, 14,656.28 and 5,905.35 is: 8,148.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.35 : 14,656.28 = 5,905.35 : x
  2. Step 2: Convert to fraction form
    10,621.35/14,656.28 = 5,905.35/x
  3. Step 3: Cross multiply
    10,621.35x = 14,656.28 × 5,905.35
  4. Step 4: Simplify right side
    10,621.35x = 86,550,433.57
  5. Step 5: Solve for x
    x = 86,550,433.57/10,621.35
  6. Step 6: Final answer
    x = 8,148.72

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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.