Home / 7,281.12-10,868.70-6,740.16

Finding the Fourth Proportional to 7,281.12, 10,868.70 and 6,740.16

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Solution

The fourth proportional to 7,281.12, 10,868.70 and 6,740.16 is: 10,061.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.12 : 10,868.70 = 6,740.16 : x
  2. Step 2: Convert to fraction form
    7,281.12/10,868.70 = 6,740.16/x
  3. Step 3: Cross multiply
    7,281.12x = 10,868.70 × 6,740.16
  4. Step 4: Simplify right side
    7,281.12x = 73,256,776.99
  5. Step 5: Solve for x
    x = 73,256,776.99/7,281.12
  6. Step 6: Final answer
    x = 10,061.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.