Home / 10,008.95-15,013.85-3,435.21

Finding the Fourth Proportional to 10,008.95, 15,013.85 and 3,435.21

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Solution

The fourth proportional to 10,008.95, 15,013.85 and 3,435.21 is: 5,152.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,008.95 : 15,013.85 = 3,435.21 : x
  2. Step 2: Convert to fraction form
    10,008.95/15,013.85 = 3,435.21/x
  3. Step 3: Cross multiply
    10,008.95x = 15,013.85 × 3,435.21
  4. Step 4: Simplify right side
    10,008.95x = 51,575,710.48
  5. Step 5: Solve for x
    x = 51,575,710.48/10,008.95
  6. Step 6: Final answer
    x = 5,152.96

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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.