Home / 7,646.48-10,555.85-5,127.67

Finding the Fourth Proportional to 7,646.48, 10,555.85 and 5,127.67

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Solution

The fourth proportional to 7,646.48, 10,555.85 and 5,127.67 is: 7,078.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,646.48 : 10,555.85 = 5,127.67 : x
  2. Step 2: Convert to fraction form
    7,646.48/10,555.85 = 5,127.67/x
  3. Step 3: Cross multiply
    7,646.48x = 10,555.85 × 5,127.67
  4. Step 4: Simplify right side
    7,646.48x = 54,126,890.06
  5. Step 5: Solve for x
    x = 54,126,890.06/7,646.48
  6. Step 6: Final answer
    x = 7,078.67

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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.