Home / 7,875.34-11,785.26-4,915.18

Finding the Fourth Proportional to 7,875.34, 11,785.26 and 4,915.18

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Solution

The fourth proportional to 7,875.34, 11,785.26 and 4,915.18 is: 7,355.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.34 : 11,785.26 = 4,915.18 : x
  2. Step 2: Convert to fraction form
    7,875.34/11,785.26 = 4,915.18/x
  3. Step 3: Cross multiply
    7,875.34x = 11,785.26 × 4,915.18
  4. Step 4: Simplify right side
    7,875.34x = 57,926,707.41
  5. Step 5: Solve for x
    x = 57,926,707.41/7,875.34
  6. Step 6: Final answer
    x = 7,355.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.