Home / 8,130.91-11,222.12-5,263.18

Finding the Fourth Proportional to 8,130.91, 11,222.12 and 5,263.18

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Solution

The fourth proportional to 8,130.91, 11,222.12 and 5,263.18 is: 7,264.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.91 : 11,222.12 = 5,263.18 : x
  2. Step 2: Convert to fraction form
    8,130.91/11,222.12 = 5,263.18/x
  3. Step 3: Cross multiply
    8,130.91x = 11,222.12 × 5,263.18
  4. Step 4: Simplify right side
    8,130.91x = 59,064,037.54
  5. Step 5: Solve for x
    x = 59,064,037.54/8,130.91
  6. Step 6: Final answer
    x = 7,264.14

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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.