Home / 8,415.02-11,607.63-5,426.12

Finding the Fourth Proportional to 8,415.02, 11,607.63 and 5,426.12

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Solution

The fourth proportional to 8,415.02, 11,607.63 and 5,426.12 is: 7,484.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,415.02 : 11,607.63 = 5,426.12 : x
  2. Step 2: Convert to fraction form
    8,415.02/11,607.63 = 5,426.12/x
  3. Step 3: Cross multiply
    8,415.02x = 11,607.63 × 5,426.12
  4. Step 4: Simplify right side
    8,415.02x = 62,984,393.30
  5. Step 5: Solve for x
    x = 62,984,393.30/8,415.02
  6. Step 6: Final answer
    x = 7,484.76

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Half scale
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Double scale
Find fourth proportional to 8,416.02, 11,609.01 and 5,427.12
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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.