Home / 10,102.35-15,153.53-7,315.95

Finding the Fourth Proportional to 10,102.35, 15,153.53 and 7,315.95

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Solution

The fourth proportional to 10,102.35, 15,153.53 and 7,315.95 is: 10,973.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,102.35 : 15,153.53 = 7,315.95 : x
  2. Step 2: Convert to fraction form
    10,102.35/15,153.53 = 7,315.95/x
  3. Step 3: Cross multiply
    10,102.35x = 15,153.53 × 7,315.95
  4. Step 4: Simplify right side
    10,102.35x = 110,862,431.22
  5. Step 5: Solve for x
    x = 110,862,431.22/10,102.35
  6. Step 6: Final answer
    x = 10,973.93

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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.