Home / 15,177.84-22,762.32-5,315.28

Finding the Fourth Proportional to 15,177.84, 22,762.32 and 5,315.28

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Solution

The fourth proportional to 15,177.84, 22,762.32 and 5,315.28 is: 7,971.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,177.84 : 22,762.32 = 5,315.28 : x
  2. Step 2: Convert to fraction form
    15,177.84/22,762.32 = 5,315.28/x
  3. Step 3: Cross multiply
    15,177.84x = 22,762.32 × 5,315.28
  4. Step 4: Simplify right side
    15,177.84x = 120,988,104.25
  5. Step 5: Solve for x
    x = 120,988,104.25/15,177.84
  6. Step 6: Final answer
    x = 7,971.37

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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.