Home / 7,911.06-10,920.87-5,562.06

Finding the Fourth Proportional to 7,911.06, 10,920.87 and 5,562.06

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Solution

The fourth proportional to 7,911.06, 10,920.87 and 5,562.06 is: 7,678.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.06 : 10,920.87 = 5,562.06 : x
  2. Step 2: Convert to fraction form
    7,911.06/10,920.87 = 5,562.06/x
  3. Step 3: Cross multiply
    7,911.06x = 10,920.87 × 5,562.06
  4. Step 4: Simplify right side
    7,911.06x = 60,742,534.19
  5. Step 5: Solve for x
    x = 60,742,534.19/7,911.06
  6. Step 6: Final answer
    x = 7,678.18

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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.