Home / 12,312.02-16,986.38-7,005.51

Finding the Fourth Proportional to 12,312.02, 16,986.38 and 7,005.51

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Solution

The fourth proportional to 12,312.02, 16,986.38 and 7,005.51 is: 9,665.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312.02 : 16,986.38 = 7,005.51 : x
  2. Step 2: Convert to fraction form
    12,312.02/16,986.38 = 7,005.51/x
  3. Step 3: Cross multiply
    12,312.02x = 16,986.38 × 7,005.51
  4. Step 4: Simplify right side
    12,312.02x = 118,998,219.93
  5. Step 5: Solve for x
    x = 118,998,219.93/12,312.02
  6. Step 6: Final answer
    x = 9,665.20

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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.