Home / 15,943.06-21,951.34-13,547.98

Finding the Fourth Proportional to 15,943.06, 21,951.34 and 13,547.98

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Solution

The fourth proportional to 15,943.06, 21,951.34 and 13,547.98 is: 18,653.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,943.06 : 21,951.34 = 13,547.98 : x
  2. Step 2: Convert to fraction form
    15,943.06/21,951.34 = 13,547.98/x
  3. Step 3: Cross multiply
    15,943.06x = 21,951.34 × 13,547.98
  4. Step 4: Simplify right side
    15,943.06x = 297,396,315.29
  5. Step 5: Solve for x
    x = 297,396,315.29/15,943.06
  6. Step 6: Final answer
    x = 18,653.65

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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.