Home / 13,312.02-18,362.45-8,530.36

Finding the Fourth Proportional to 13,312.02, 18,362.45 and 8,530.36

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Solution

The fourth proportional to 13,312.02, 18,362.45 and 8,530.36 is: 11,766.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.02 : 18,362.45 = 8,530.36 : x
  2. Step 2: Convert to fraction form
    13,312.02/18,362.45 = 8,530.36/x
  3. Step 3: Cross multiply
    13,312.02x = 18,362.45 × 8,530.36
  4. Step 4: Simplify right side
    13,312.02x = 156,638,284.40
  5. Step 5: Solve for x
    x = 156,638,284.40/13,312.02
  6. Step 6: Final answer
    x = 11,766.68

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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.