Home / 15,750.85-23,618.07-7,428.63

Finding the Fourth Proportional to 15,750.85, 23,618.07 and 7,428.63

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Solution

The fourth proportional to 15,750.85, 23,618.07 and 7,428.63 is: 11,139.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,750.85 : 23,618.07 = 7,428.63 : x
  2. Step 2: Convert to fraction form
    15,750.85/23,618.07 = 7,428.63/x
  3. Step 3: Cross multiply
    15,750.85x = 23,618.07 × 7,428.63
  4. Step 4: Simplify right side
    15,750.85x = 175,449,903.34
  5. Step 5: Solve for x
    x = 175,449,903.34/15,750.85
  6. Step 6: Final answer
    x = 11,139.08

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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.