Home / 10,428.39-15,642.59-4,809.02

Finding the Fourth Proportional to 10,428.39, 15,642.59 and 4,809.02

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Solution

The fourth proportional to 10,428.39, 15,642.59 and 4,809.02 is: 7,213.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428.39 : 15,642.59 = 4,809.02 : x
  2. Step 2: Convert to fraction form
    10,428.39/15,642.59 = 4,809.02/x
  3. Step 3: Cross multiply
    10,428.39x = 15,642.59 × 4,809.02
  4. Step 4: Simplify right side
    10,428.39x = 75,225,425.90
  5. Step 5: Solve for x
    x = 75,225,425.90/10,428.39
  6. Step 6: Final answer
    x = 7,213.52

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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.