Home / 10,075.83-13,903.70-9,332.79

Finding the Fourth Proportional to 10,075.83, 13,903.70 and 9,332.79

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Solution

The fourth proportional to 10,075.83, 13,903.70 and 9,332.79 is: 12,878.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,075.83 : 13,903.70 = 9,332.79 : x
  2. Step 2: Convert to fraction form
    10,075.83/13,903.70 = 9,332.79/x
  3. Step 3: Cross multiply
    10,075.83x = 13,903.70 × 9,332.79
  4. Step 4: Simplify right side
    10,075.83x = 129,760,265.66
  5. Step 5: Solve for x
    x = 129,760,265.66/10,075.83
  6. Step 6: Final answer
    x = 12,878.37

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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.