Home / 10,345.53-15,490.75-7,065.03

Finding the Fourth Proportional to 10,345.53, 15,490.75 and 7,065.03

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Solution

The fourth proportional to 10,345.53, 15,490.75 and 7,065.03 is: 10,578.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.53 : 15,490.75 = 7,065.03 : x
  2. Step 2: Convert to fraction form
    10,345.53/15,490.75 = 7,065.03/x
  3. Step 3: Cross multiply
    10,345.53x = 15,490.75 × 7,065.03
  4. Step 4: Simplify right side
    10,345.53x = 109,442,613.47
  5. Step 5: Solve for x
    x = 109,442,613.47/10,345.53
  6. Step 6: Final answer
    x = 10,578.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.