Home / 8,146.15-11,240.29-5,312.77

Finding the Fourth Proportional to 8,146.15, 11,240.29 and 5,312.77

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Solution

The fourth proportional to 8,146.15, 11,240.29 and 5,312.77 is: 7,330.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,146.15 : 11,240.29 = 5,312.77 : x
  2. Step 2: Convert to fraction form
    8,146.15/11,240.29 = 5,312.77/x
  3. Step 3: Cross multiply
    8,146.15x = 11,240.29 × 5,312.77
  4. Step 4: Simplify right side
    8,146.15x = 59,717,075.50
  5. Step 5: Solve for x
    x = 59,717,075.50/8,146.15
  6. Step 6: Final answer
    x = 7,330.71

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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.