Home / 7,763.12-10,725.65-5,415.74

Finding the Fourth Proportional to 7,763.12, 10,725.65 and 5,415.74

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Solution

The fourth proportional to 7,763.12, 10,725.65 and 5,415.74 is: 7,482.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,763.12 : 10,725.65 = 5,415.74 : x
  2. Step 2: Convert to fraction form
    7,763.12/10,725.65 = 5,415.74/x
  3. Step 3: Cross multiply
    7,763.12x = 10,725.65 × 5,415.74
  4. Step 4: Simplify right side
    7,763.12x = 58,087,251.02
  5. Step 5: Solve for x
    x = 58,087,251.02/7,763.12
  6. Step 6: Final answer
    x = 7,482.47

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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.