Home / 7,985.84-11,014.59-5,151.77

Finding the Fourth Proportional to 7,985.84, 11,014.59 and 5,151.77

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Solution

The fourth proportional to 7,985.84, 11,014.59 and 5,151.77 is: 7,105.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.84 : 11,014.59 = 5,151.77 : x
  2. Step 2: Convert to fraction form
    7,985.84/11,014.59 = 5,151.77/x
  3. Step 3: Cross multiply
    7,985.84x = 11,014.59 × 5,151.77
  4. Step 4: Simplify right side
    7,985.84x = 56,744,701.83
  5. Step 5: Solve for x
    x = 56,744,701.83/7,985.84
  6. Step 6: Final answer
    x = 7,105.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.