Home / 9,402.68-12,975.53-5,153.63

Finding the Fourth Proportional to 9,402.68, 12,975.53 and 5,153.63

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Solution

The fourth proportional to 9,402.68, 12,975.53 and 5,153.63 is: 7,111.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,402.68 : 12,975.53 = 5,153.63 : x
  2. Step 2: Convert to fraction form
    9,402.68/12,975.53 = 5,153.63/x
  3. Step 3: Cross multiply
    9,402.68x = 12,975.53 × 5,153.63
  4. Step 4: Simplify right side
    9,402.68x = 66,870,990.03
  5. Step 5: Solve for x
    x = 66,870,990.03/9,402.68
  6. Step 6: Final answer
    x = 7,111.91

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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.