Home / 10,153.62-15,235.29-6,642.81

Finding the Fourth Proportional to 10,153.62, 15,235.29 and 6,642.81

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Solution

The fourth proportional to 10,153.62, 15,235.29 and 6,642.81 is: 9,967.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,153.62 : 15,235.29 = 6,642.81 : x
  2. Step 2: Convert to fraction form
    10,153.62/15,235.29 = 6,642.81/x
  3. Step 3: Cross multiply
    10,153.62x = 15,235.29 × 6,642.81
  4. Step 4: Simplify right side
    10,153.62x = 101,205,136.76
  5. Step 5: Solve for x
    x = 101,205,136.76/10,153.62
  6. Step 6: Final answer
    x = 9,967.39

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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.