Home / 10,973.84-15,143.94-10,136.68

Finding the Fourth Proportional to 10,973.84, 15,143.94 and 10,136.68

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Solution

The fourth proportional to 10,973.84, 15,143.94 and 10,136.68 is: 13,988.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,973.84 : 15,143.94 = 10,136.68 : x
  2. Step 2: Convert to fraction form
    10,973.84/15,143.94 = 10,136.68/x
  3. Step 3: Cross multiply
    10,973.84x = 15,143.94 × 10,136.68
  4. Step 4: Simplify right side
    10,973.84x = 153,509,273.72
  5. Step 5: Solve for x
    x = 153,509,273.72/10,973.84
  6. Step 6: Final answer
    x = 13,988.66

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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.