Home / 9,918.92-13,688.02-5,442.66

Finding the Fourth Proportional to 9,918.92, 13,688.02 and 5,442.66

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Solution

The fourth proportional to 9,918.92, 13,688.02 and 5,442.66 is: 7,510.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.92 : 13,688.02 = 5,442.66 : x
  2. Step 2: Convert to fraction form
    9,918.92/13,688.02 = 5,442.66/x
  3. Step 3: Cross multiply
    9,918.92x = 13,688.02 × 5,442.66
  4. Step 4: Simplify right side
    9,918.92x = 74,499,238.93
  5. Step 5: Solve for x
    x = 74,499,238.93/9,918.92
  6. Step 6: Final answer
    x = 7,510.82

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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.