Home / 12,111.04-16,712.70-7,075.74

Finding the Fourth Proportional to 12,111.04, 16,712.70 and 7,075.74

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Solution

The fourth proportional to 12,111.04, 16,712.70 and 7,075.74 is: 9,764.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,111.04 : 16,712.70 = 7,075.74 : x
  2. Step 2: Convert to fraction form
    12,111.04/16,712.70 = 7,075.74/x
  3. Step 3: Cross multiply
    12,111.04x = 16,712.70 × 7,075.74
  4. Step 4: Simplify right side
    12,111.04x = 118,254,719.90
  5. Step 5: Solve for x
    x = 118,254,719.90/12,111.04
  6. Step 6: Final answer
    x = 9,764.21

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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.