Home / 7,815.47-10,784.33-4,458.08

Finding the Fourth Proportional to 7,815.47, 10,784.33 and 4,458.08

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Solution

The fourth proportional to 7,815.47, 10,784.33 and 4,458.08 is: 6,151.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.47 : 10,784.33 = 4,458.08 : x
  2. Step 2: Convert to fraction form
    7,815.47/10,784.33 = 4,458.08/x
  3. Step 3: Cross multiply
    7,815.47x = 10,784.33 × 4,458.08
  4. Step 4: Simplify right side
    7,815.47x = 48,077,407.51
  5. Step 5: Solve for x
    x = 48,077,407.51/7,815.47
  6. Step 6: Final answer
    x = 6,151.57

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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.