Home / 10,011.51-15,019.34-3,771.45

Finding the Fourth Proportional to 10,011.51, 15,019.34 and 3,771.45

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Solution

The fourth proportional to 10,011.51, 15,019.34 and 3,771.45 is: 5,657.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,011.51 : 15,019.34 = 3,771.45 : x
  2. Step 2: Convert to fraction form
    10,011.51/15,019.34 = 3,771.45/x
  3. Step 3: Cross multiply
    10,011.51x = 15,019.34 × 3,771.45
  4. Step 4: Simplify right side
    10,011.51x = 56,644,670.99
  5. Step 5: Solve for x
    x = 56,644,670.99/10,011.51
  6. Step 6: Final answer
    x = 5,657.95

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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.