Home / 10,621.68-14,657.76-6,145.08

Finding the Fourth Proportional to 10,621.68, 14,657.76 and 6,145.08

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Solution

The fourth proportional to 10,621.68, 14,657.76 and 6,145.08 is: 8,480.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.68 : 14,657.76 = 6,145.08 : x
  2. Step 2: Convert to fraction form
    10,621.68/14,657.76 = 6,145.08/x
  3. Step 3: Cross multiply
    10,621.68x = 14,657.76 × 6,145.08
  4. Step 4: Simplify right side
    10,621.68x = 90,073,107.82
  5. Step 5: Solve for x
    x = 90,073,107.82/10,621.68
  6. Step 6: Final answer
    x = 8,480.12

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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.