Home / 7,815.36-10,785.93-4,671.48

Finding the Fourth Proportional to 7,815.36, 10,785.93 and 4,671.48

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Solution

The fourth proportional to 7,815.36, 10,785.93 and 4,671.48 is: 6,447.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.36 : 10,785.93 = 4,671.48 : x
  2. Step 2: Convert to fraction form
    7,815.36/10,785.93 = 4,671.48/x
  3. Step 3: Cross multiply
    7,815.36x = 10,785.93 × 4,671.48
  4. Step 4: Simplify right side
    7,815.36x = 50,386,256.28
  5. Step 5: Solve for x
    x = 50,386,256.28/7,815.36
  6. Step 6: Final answer
    x = 6,447.08

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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.