Home / 12,075.40-16,663.35-7,040.44

Finding the Fourth Proportional to 12,075.40, 16,663.35 and 7,040.44

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Solution

The fourth proportional to 12,075.40, 16,663.35 and 7,040.44 is: 9,715.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,075.40 : 16,663.35 = 7,040.44 : x
  2. Step 2: Convert to fraction form
    12,075.40/16,663.35 = 7,040.44/x
  3. Step 3: Cross multiply
    12,075.40x = 16,663.35 × 7,040.44
  4. Step 4: Simplify right side
    12,075.40x = 117,317,315.87
  5. Step 5: Solve for x
    x = 117,317,315.87/12,075.40
  6. Step 6: Final answer
    x = 9,715.40

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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.