Home / 10,615.12-14,628-8,936.80

Finding the Fourth Proportional to 10,615.12, 14,628 and 8,936.80

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Solution

The fourth proportional to 10,615.12, 14,628 and 8,936.80 is: 12,315.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,615.12 : 14,628 = 8,936.80 : x
  2. Step 2: Convert to fraction form
    10,615.12/14,628 = 8,936.80/x
  3. Step 3: Cross multiply
    10,615.12x = 14,628 × 8,936.80
  4. Step 4: Simplify right side
    10,615.12x = 130,727,510.40
  5. Step 5: Solve for x
    x = 130,727,510.40/10,615.12
  6. Step 6: Final answer
    x = 12,315.22

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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.