Home / 7,875.68-10,868.90-4,518.47

Finding the Fourth Proportional to 7,875.68, 10,868.90 and 4,518.47

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Solution

The fourth proportional to 7,875.68, 10,868.90 and 4,518.47 is: 6,235.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.68 : 10,868.90 = 4,518.47 : x
  2. Step 2: Convert to fraction form
    7,875.68/10,868.90 = 4,518.47/x
  3. Step 3: Cross multiply
    7,875.68x = 10,868.90 × 4,518.47
  4. Step 4: Simplify right side
    7,875.68x = 49,110,775.99
  5. Step 5: Solve for x
    x = 49,110,775.99/7,875.68
  6. Step 6: Final answer
    x = 6,235.75

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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.