Home / 13,853.12-19,117.31-8,547.93

Finding the Fourth Proportional to 13,853.12, 19,117.31 and 8,547.93

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Solution

The fourth proportional to 13,853.12, 19,117.31 and 8,547.93 is: 11,796.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,853.12 : 19,117.31 = 8,547.93 : x
  2. Step 2: Convert to fraction form
    13,853.12/19,117.31 = 8,547.93/x
  3. Step 3: Cross multiply
    13,853.12x = 19,117.31 × 8,547.93
  4. Step 4: Simplify right side
    13,853.12x = 163,413,384.93
  5. Step 5: Solve for x
    x = 163,413,384.93/13,853.12
  6. Step 6: Final answer
    x = 11,796.15

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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.