Home / 13,426.61-18,532.08-7,764.66

Finding the Fourth Proportional to 13,426.61, 18,532.08 and 7,764.66

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Solution

The fourth proportional to 13,426.61, 18,532.08 and 7,764.66 is: 10,717.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.61 : 18,532.08 = 7,764.66 : x
  2. Step 2: Convert to fraction form
    13,426.61/18,532.08 = 7,764.66/x
  3. Step 3: Cross multiply
    13,426.61x = 18,532.08 × 7,764.66
  4. Step 4: Simplify right side
    13,426.61x = 143,895,300.29
  5. Step 5: Solve for x
    x = 143,895,300.29/13,426.61
  6. Step 6: Final answer
    x = 10,717.18

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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.