Home / 8,432.16-11,640.95-5,075.79

Finding the Fourth Proportional to 8,432.16, 11,640.95 and 5,075.79

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Solution

The fourth proportional to 8,432.16, 11,640.95 and 5,075.79 is: 7,007.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,432.16 : 11,640.95 = 5,075.79 : x
  2. Step 2: Convert to fraction form
    8,432.16/11,640.95 = 5,075.79/x
  3. Step 3: Cross multiply
    8,432.16x = 11,640.95 × 5,075.79
  4. Step 4: Simplify right side
    8,432.16x = 59,087,017.60
  5. Step 5: Solve for x
    x = 59,087,017.60/8,432.16
  6. Step 6: Final answer
    x = 7,007.34

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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.