Home / 10,240.81-14,136.67-6,885.56

Finding the Fourth Proportional to 10,240.81, 14,136.67 and 6,885.56

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Solution

The fourth proportional to 10,240.81, 14,136.67 and 6,885.56 is: 9,505.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,240.81 : 14,136.67 = 6,885.56 : x
  2. Step 2: Convert to fraction form
    10,240.81/14,136.67 = 6,885.56/x
  3. Step 3: Cross multiply
    10,240.81x = 14,136.67 × 6,885.56
  4. Step 4: Simplify right side
    10,240.81x = 97,338,913.04
  5. Step 5: Solve for x
    x = 97,338,913.04/10,240.81
  6. Step 6: Final answer
    x = 9,505.00

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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.