Home / 8,712.31-12,023.02-5,127.41

Finding the Fourth Proportional to 8,712.31, 12,023.02 and 5,127.41

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Solution

The fourth proportional to 8,712.31, 12,023.02 and 5,127.41 is: 7,075.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.31 : 12,023.02 = 5,127.41 : x
  2. Step 2: Convert to fraction form
    8,712.31/12,023.02 = 5,127.41/x
  3. Step 3: Cross multiply
    8,712.31x = 12,023.02 × 5,127.41
  4. Step 4: Simplify right side
    8,712.31x = 61,646,952.98
  5. Step 5: Solve for x
    x = 61,646,952.98/8,712.31
  6. Step 6: Final answer
    x = 7,075.84

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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.