Home / 8,607.02-11,869.81-5,621.76

Finding the Fourth Proportional to 8,607.02, 11,869.81 and 5,621.76

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Solution

The fourth proportional to 8,607.02, 11,869.81 and 5,621.76 is: 7,752.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,607.02 : 11,869.81 = 5,621.76 : x
  2. Step 2: Convert to fraction form
    8,607.02/11,869.81 = 5,621.76/x
  3. Step 3: Cross multiply
    8,607.02x = 11,869.81 × 5,621.76
  4. Step 4: Simplify right side
    8,607.02x = 66,729,209.01
  5. Step 5: Solve for x
    x = 66,729,209.01/8,607.02
  6. Step 6: Final answer
    x = 7,752.89

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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.