Home / 7,888.08-10,873.68-6,488.40

Finding the Fourth Proportional to 7,888.08, 10,873.68 and 6,488.40

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Solution

The fourth proportional to 7,888.08, 10,873.68 and 6,488.40 is: 8,944.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,888.08 : 10,873.68 = 6,488.40 : x
  2. Step 2: Convert to fraction form
    7,888.08/10,873.68 = 6,488.40/x
  3. Step 3: Cross multiply
    7,888.08x = 10,873.68 × 6,488.40
  4. Step 4: Simplify right side
    7,888.08x = 70,552,785.31
  5. Step 5: Solve for x
    x = 70,552,785.31/7,888.08
  6. Step 6: Final answer
    x = 8,944.23

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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.