Home / 13,967.07-19,275.74-7,680.66

Finding the Fourth Proportional to 13,967.07, 19,275.74 and 7,680.66

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Solution

The fourth proportional to 13,967.07, 19,275.74 and 7,680.66 is: 10,599.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,967.07 : 19,275.74 = 7,680.66 : x
  2. Step 2: Convert to fraction form
    13,967.07/19,275.74 = 7,680.66/x
  3. Step 3: Cross multiply
    13,967.07x = 19,275.74 × 7,680.66
  4. Step 4: Simplify right side
    13,967.07x = 148,050,405.19
  5. Step 5: Solve for x
    x = 148,050,405.19/13,967.07
  6. Step 6: Final answer
    x = 10,599.96

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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.