Home / 8,345.12-11,510.70-5,356.22

Finding the Fourth Proportional to 8,345.12, 11,510.70 and 5,356.22

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Solution

The fourth proportional to 8,345.12, 11,510.70 and 5,356.22 is: 7,388.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,345.12 : 11,510.70 = 5,356.22 : x
  2. Step 2: Convert to fraction form
    8,345.12/11,510.70 = 5,356.22/x
  3. Step 3: Cross multiply
    8,345.12x = 11,510.70 × 5,356.22
  4. Step 4: Simplify right side
    8,345.12x = 61,653,841.55
  5. Step 5: Solve for x
    x = 61,653,841.55/8,345.12
  6. Step 6: Final answer
    x = 7,388.01

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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.