Home / 11,848.95-16,345.67-7,864.97

Finding the Fourth Proportional to 11,848.95, 16,345.67 and 7,864.97

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Solution

The fourth proportional to 11,848.95, 16,345.67 and 7,864.97 is: 10,849.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,848.95 : 16,345.67 = 7,864.97 : x
  2. Step 2: Convert to fraction form
    11,848.95/16,345.67 = 7,864.97/x
  3. Step 3: Cross multiply
    11,848.95x = 16,345.67 × 7,864.97
  4. Step 4: Simplify right side
    11,848.95x = 128,558,083.13
  5. Step 5: Solve for x
    x = 128,558,083.13/11,848.95
  6. Step 6: Final answer
    x = 10,849.74

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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.