Home / 10,015.04-13,819.22-5,765.28

Finding the Fourth Proportional to 10,015.04, 13,819.22 and 5,765.28

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Solution

The fourth proportional to 10,015.04, 13,819.22 and 5,765.28 is: 7,955.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.04 : 13,819.22 = 5,765.28 : x
  2. Step 2: Convert to fraction form
    10,015.04/13,819.22 = 5,765.28/x
  3. Step 3: Cross multiply
    10,015.04x = 13,819.22 × 5,765.28
  4. Step 4: Simplify right side
    10,015.04x = 79,671,746.12
  5. Step 5: Solve for x
    x = 79,671,746.12/10,015.04
  6. Step 6: Final answer
    x = 7,955.21

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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.