Home / 15,130.81-22,696.82-5,271.08

Finding the Fourth Proportional to 15,130.81, 22,696.82 and 5,271.08

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Solution

The fourth proportional to 15,130.81, 22,696.82 and 5,271.08 is: 7,906.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,130.81 : 22,696.82 = 5,271.08 : x
  2. Step 2: Convert to fraction form
    15,130.81/22,696.82 = 5,271.08/x
  3. Step 3: Cross multiply
    15,130.81x = 22,696.82 × 5,271.08
  4. Step 4: Simplify right side
    15,130.81x = 119,636,823.89
  5. Step 5: Solve for x
    x = 119,636,823.89/15,130.81
  6. Step 6: Final answer
    x = 7,906.84

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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.