Home / 7,402.50-10,215.54-4,258.76

Finding the Fourth Proportional to 7,402.50, 10,215.54 and 4,258.76

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Solution

The fourth proportional to 7,402.50, 10,215.54 and 4,258.76 is: 5,877.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,402.50 : 10,215.54 = 4,258.76 : x
  2. Step 2: Convert to fraction form
    7,402.50/10,215.54 = 4,258.76/x
  3. Step 3: Cross multiply
    7,402.50x = 10,215.54 × 4,258.76
  4. Step 4: Simplify right side
    7,402.50x = 43,505,482.05
  5. Step 5: Solve for x
    x = 43,505,482.05/7,402.50
  6. Step 6: Final answer
    x = 5,877.13

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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.