Home / 7,875.46-10,867.66-4,688.99

Finding the Fourth Proportional to 7,875.46, 10,867.66 and 4,688.99

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Solution

The fourth proportional to 7,875.46, 10,867.66 and 4,688.99 is: 6,470.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.46 : 10,867.66 = 4,688.99 : x
  2. Step 2: Convert to fraction form
    7,875.46/10,867.66 = 4,688.99/x
  3. Step 3: Cross multiply
    7,875.46x = 10,867.66 × 4,688.99
  4. Step 4: Simplify right side
    7,875.46x = 50,958,349.06
  5. Step 5: Solve for x
    x = 50,958,349.06/7,875.46
  6. Step 6: Final answer
    x = 6,470.52

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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.